40073232 has 20 divisors (see below), whose sum is σ = 103522640. Its totient is φ = 13357728.

The previous prime is 40073221. The next prime is 40073249. The reversal of 40073232 is 23237004.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 40073199 and 40073208.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 417382 + ... + 417477.

It is an arithmetic number, because the mean of its divisors is an integer number (5176132).

Almost surely, 2^40073232 is an apocalyptic number.

It is an amenable number.

40073232 is an abundant number, since it is smaller than the sum of its proper divisors (63449408).

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

40073232 is a wasteful number, since it uses less digits than its factorization.

40073232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 834870 (or 834864 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 21.

The square root of 40073232 is about 6330.3421708467. The cubic root of 40073232 is about 342.2037703612.

The spelling of 40073232 in words is "forty million, seventy-three thousand, two hundred thirty-two".