40928388 has 12 divisors (see below), whose sum is σ = 95499600. Its totient is φ = 13642792.

The previous prime is 40928387. The next prime is 40928423. The reversal of 40928388 is 88382904.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (40928383) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1705338 + ... + 1705361.

It is an arithmetic number, because the mean of its divisors is an integer number (7958300).

Almost surely, 2^40928388 is an apocalyptic number.

It is an amenable number.

40928388 is an abundant number, since it is smaller than the sum of its proper divisors (54571212).

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

40928388 is a wasteful number, since it uses less digits than its factorization.

40928388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3410706 (or 3410704 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 42.

The square root of 40928388 is about 6397.5298358038. The cubic root of 40928388 is about 344.6208479079.

The spelling of 40928388 in words is "forty million, nine hundred twenty-eight thousand, three hundred eighty-eight".