4345665426 has 96 divisors (see below), whose sum is σ = 10204047360. Its totient is φ = 1331624448.

The previous prime is 4345665397. The next prime is 4345665431. The reversal of 4345665426 is 6245665434.

It is a happy number.

4345665426 is a `hidden beast` number, since 4 + 3 + 45 + 66 + 542 + 6 = 666.

It is a super-2 number, since 2×4345665426² = 37769615989463522952, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2602920 + ... + 2604588.

It is an arithmetic number, because the mean of its divisors is an integer number (106292160).

Almost surely, 2^4345665426 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4345665426, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5102023680).

4345665426 is an abundant number, since it is smaller than the sum of its proper divisors (5858381934).

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

4345665426 is a wasteful number, since it uses less digits than its factorization.

4345665426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1888 (or 1885 counting only the distinct ones).

The product of its digits is 2073600, while the sum is 45.

The square root of 4345665426 is about 65921.6612806443. The cubic root of 4345665426 is about 1631.8695131579.

The spelling of 4345665426 in words is "four billion, three hundred forty-five million, six hundred sixty-five thousand, four hundred twenty-six".