4646440440 has 48 divisors (see below), whose sum is σ = 15100932600. Its totient is φ = 1239050688.

The previous prime is 4646440423. The next prime is 4646440471. The reversal of 4646440440 is 440446464.

4646440440 is a `hidden beast` number, since 4 + 6 + 4 + 644 + 0 + 4 + 4 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 4646440395 and 4646440404.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 6453030 + ... + 6453749.

Almost surely, 2^4646440440 is an apocalyptic number.

4646440440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4646440440 is an abundant number, since it is smaller than the sum of its proper divisors (10454492160).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4646440440 is a wasteful number, since it uses less digits than its factorization.

4646440440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12906796 (or 12906789 counting only the distinct ones).

The product of its (nonzero) digits is 147456, while the sum is 36.

The square root of 4646440440 is about 68164.8035279205. The cubic root of 4646440440 is about 1668.6815271319.

The spelling of 4646440440 in words is "four billion, six hundred forty-six million, four hundred forty thousand, four hundred forty".