4490126685 has 72 divisors (see below), whose sum is σ = 8763830712. Its totient is φ = 2123827200.

The previous prime is 4490126659. The next prime is 4490126687. The reversal of 4490126685 is 5866210944.

4490126685 is a `hidden beast` number, since 449 + 0 + 126 + 6 + 85 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 229431609 + 4260695076 = 15147^2 + 65274^2 .

It is not a de Polignac number, because 4490126685 - 2¹¹ = 4490124637 is a prime.

It is a super-2 number, since 2×4490126685² = 40322475294698178450, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 4490126685.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4490126687) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 213189 + ... + 233301.

It is an arithmetic number, because the mean of its divisors is an integer number (121719871).

Almost surely, 2^4490126685 is an apocalyptic number.

4490126685 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

4490126685 is a deficient number, since it is larger than the sum of its proper divisors (4273704027).

4490126685 is a wasteful number, since it uses less digits than its factorization.

4490126685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20187 (or 20173 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 45.

The square root of 4490126685 is about 67008.4075694983. The cubic root of 4490126685 is about 1649.7552970445.

The spelling of 4490126685 in words is "four billion, four hundred ninety million, one hundred twenty-six thousand, six hundred eighty-five".