4156972 has 24 divisors (see below), whose sum is σ = 7761600. Its totient is φ = 1942416.

The previous prime is 4156969. The next prime is 4156981. The reversal of 4156972 is 2796514.

It is an Ulam number.

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, 5979 + ... + 6637.

It is an arithmetic number, because the mean of its divisors is an integer number (323400).

Almost surely, 2^4156972 is an apocalyptic number.

It is an amenable number.

4156972 is a deficient number, since it is larger than the sum of its proper divisors (3604628).

4156972 is a wasteful number, since it uses less digits than its factorization.

4156972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 765 (or 763 counting only the distinct ones).

The product of its digits is 15120, while the sum is 34.

The square root of 4156972 is about 2038.8653707393. The cubic root of 4156972 is about 160.7899992130.

The spelling of 4156972 in words is "four million, one hundred fifty-six thousand, nine hundred seventy-two".