40929988 has 24 divisors (see below), whose sum is σ = 78309504. Its totient is φ = 18564000.

The previous prime is 40929953. The next prime is 40929989. The reversal of 40929988 is 88992904.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (40929989) 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, 30181 + ... + 31507.

It is an arithmetic number, because the mean of its divisors is an integer number (3262896).

Almost surely, 2^40929988 is an apocalyptic number.

It is an amenable number.

40929988 is a deficient number, since it is larger than the sum of its proper divisors (37379516).

40929988 is a wasteful number, since it uses less digits than its factorization.

40929988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2043 (or 2041 counting only the distinct ones).

The product of its (nonzero) digits is 373248, while the sum is 49.

The square root of 40929988 is about 6397.6548828457. The cubic root of 40929988 is about 344.6253385659.

The spelling of 40929988 in words is "forty million, nine hundred twenty-nine thousand, nine hundred eighty-eight".