2645907432 has 64 divisors (see below), whose sum is σ = 7610544000. Its totient is φ = 750892800.

The previous prime is 2645907431. The next prime is 2645907457. The reversal of 2645907432 is 2347095462.

It is a super-2 number, since 2×2645907432² = 14001652277425669248, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is not an unprimeable number, because it can be changed into a prime (2645907431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27819 + ... + 77882.

It is an arithmetic number, because the mean of its divisors is an integer number (118914750).

Almost surely, 2^2645907432 is an apocalyptic number.

It is an amenable number.

2645907432 is an abundant number, since it is smaller than the sum of its proper divisors (4964636568).

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

2645907432 is a wasteful number, since it uses less digits than its factorization.

2645907432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105866 (or 105862 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 42.

The square root of 2645907432 is about 51438.3848113449. The cubic root of 2645907432 is about 1383.1147582206.

The spelling of 2645907432 in words is "two billion, six hundred forty-five million, nine hundred seven thousand, four hundred thirty-two".