40456928 has 24 divisors (see below), whose sum is σ = 83842920. Its totient is φ = 19163520.

The previous prime is 40456921. The next prime is 40456951. The reversal of 40456928 is 82965404.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is a junction number, because it is equal to n+sod(n) for n = 40456891 and 40456900.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40456921) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 32663 + ... + 33878.

It is an arithmetic number, because the mean of its divisors is an integer number (3493455).

Almost surely, 2^40456928 is an apocalyptic number.

It is an amenable number.

40456928 is an abundant number, since it is smaller than the sum of its proper divisors (43385992).

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

40456928 is a wasteful number, since it uses less digits than its factorization.

40456928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66570 (or 66562 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 38.

The square root of 40456928 is about 6360.5760745392. The cubic root of 40456928 is about 343.2924885167.

The spelling of 40456928 in words is "forty million, four hundred fifty-six thousand, nine hundred twenty-eight".