45656440 has 32 divisors (see below), whose sum is σ = 106272000. Its totient is φ = 17632384.

The previous prime is 45656437. The next prime is 45656447. The reversal of 45656440 is 4465654.

45656440 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 45656396 and 45656405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45656447) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 18520 + ... + 20839.

It is an arithmetic number, because the mean of its divisors is an integer number (3321000).

Almost surely, 2^45656440 is an apocalyptic number.

45656440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

45656440 is an abundant number, since it is smaller than the sum of its proper divisors (60615560).

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

45656440 is a wasteful number, since it uses less digits than its factorization.

45656440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39399 (or 39395 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 34.

The square root of 45656440 is about 6756.9549354720. The cubic root of 45656440 is about 357.4105339560.

The spelling of 45656440 in words is "forty-five million, six hundred fifty-six thousand, four hundred forty".