40427928 has 48 divisors (see below), whose sum is σ = 114257520. Its totient is φ = 12889536.

The previous prime is 40427879. The next prime is 40427957. The reversal of 40427928 is 82972404.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 40427892 and 40427901.

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 11 ways as a sum of consecutive naturals, for example, 10551 + ... + 13862.

It is an arithmetic number, because the mean of its divisors is an integer number (2380365).

Almost surely, 2^40427928 is an apocalyptic number.

It is an amenable number.

40427928 is an abundant number, since it is smaller than the sum of its proper divisors (73829592).

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

40427928 is a wasteful number, since it uses less digits than its factorization.

40427928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24448 (or 24441 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 36.

The square root of 40427928 is about 6358.2959981429. The cubic root of 40427928 is about 343.2104435507.

The spelling of 40427928 in words is "forty million, four hundred twenty-seven thousand, nine hundred twenty-eight".