40202972 has 24 divisors (see below), whose sum is σ = 71373456. Its totient is φ = 19813248.

The previous prime is 40202947. The next prime is 40203029. The reversal of 40202972 is 27920204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 128288 + ... + 128600.

It is an arithmetic number, because the mean of its divisors is an integer number (2973894).

Almost surely, 2^40202972 is an apocalyptic number.

It is an amenable number.

40202972 is a deficient number, since it is larger than the sum of its proper divisors (31170484).

40202972 is a wasteful number, since it uses less digits than its factorization.

40202972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 677 (or 675 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 26.

The square root of 40202972 is about 6340.5813613580. The cubic root of 40202972 is about 342.5726757174.

The spelling of 40202972 in words is "forty million, two hundred two thousand, nine hundred seventy-two".