40972 has 6 divisors (see below), whose sum is σ = 71708. Its totient is φ = 20484.

The previous prime is 40961. The next prime is 40973. The reversal of 40972 is 27904.

It is not an unprimeable number, because it can be changed into a prime (40973) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5118 + ... + 5125.

2⁴⁰⁹⁷² is an apocalyptic number.

It is an amenable number.

40972 is a deficient number, since it is larger than the sum of its proper divisors (30736).

40972 is a wasteful number, since it uses less digits than its factorization.

40972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10247 (or 10245 counting only the distinct ones).

The product of its (nonzero) digits is 504, while the sum is 22.

The square root of 40972 is about 202.4154144328. The cubic root of 40972 is about 34.4743210160.

The spelling of 40972 in words is "forty thousand, nine hundred seventy-two".