45457940 has 24 divisors (see below), whose sum is σ = 104140512. Its totient is φ = 16530080.

The previous prime is 45457931. The next prime is 45457957. The reversal of 45457940 is 4975454.

It is a junction number, because it is equal to n+sod(n) for n = 45457894 and 45457903.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 103094 + ... + 103533.

It is an arithmetic number, because the mean of its divisors is an integer number (4339188).

Almost surely, 2^45457940 is an apocalyptic number.

It is an amenable number.

45457940 is an abundant number, since it is smaller than the sum of its proper divisors (58682572).

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

45457940 is a wasteful number, since it uses less digits than its factorization.

45457940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 206647 (or 206645 counting only the distinct ones).

The product of its (nonzero) digits is 100800, while the sum is 38.

The square root of 45457940 is about 6742.2503661611. The cubic root of 45457940 is about 356.8918115363.

The spelling of 45457940 in words is "forty-five million, four hundred fifty-seven thousand, nine hundred forty".