40923972 has 36 divisors (see below), whose sum is σ = 104272896. Its totient is φ = 13532400.

The previous prime is 40923943. The next prime is 40923977. The reversal of 40923972 is 27932904.

It is a tau number, because it is divible by the number of its divisors (36).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40923977) 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 11 ways as a sum of consecutive naturals, for example, 97 + ... + 9047.

Almost surely, 2^40923972 is an apocalyptic number.

It is an amenable number.

40923972 is an abundant number, since it is smaller than the sum of its proper divisors (63348924).

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

40923972 is a wasteful number, since it uses less digits than its factorization.

40923972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9088 (or 9083 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 36.

The square root of 40923972 is about 6397.1846932850. The cubic root of 40923972 is about 344.6084530847.

The spelling of 40923972 in words is "forty million, nine hundred twenty-three thousand, nine hundred seventy-two".