40577928 has 32 divisors (see below), whose sum is σ = 102125760. Its totient is φ = 13435200.

The previous prime is 40577921. The next prime is 40577941. The reversal of 40577928 is 82977504.

It is a self number, because there is not a number n which added to its sum of digits gives 40577928.

It is not an unprimeable number, because it can be changed into a prime (40577921) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1975 + ... + 9222.

It is an arithmetic number, because the mean of its divisors is an integer number (3191430).

Almost surely, 2^40577928 is an apocalyptic number.

It is an amenable number.

40577928 is an abundant number, since it is smaller than the sum of its proper divisors (61547832).

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

40577928 is a wasteful number, since it uses less digits than its factorization.

40577928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11357 (or 11353 counting only the distinct ones).

The product of its (nonzero) digits is 141120, while the sum is 42.

The square root of 40577928 is about 6370.0806902268. The cubic root of 40577928 is about 343.6343916249.

The spelling of 40577928 in words is "forty million, five hundred seventy-seven thousand, nine hundred twenty-eight".