1229972 has 12 divisors (see below), whose sum is σ = 2202816. Its totient is φ = 600600.

The previous prime is 1229957. The next prime is 1229981. The reversal of 1229972 is 2799221.

It is a super-2 number, since 2×1229972² = 3025662241568, which contains 22 as substring.

It is a congruent number.

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, 3404 + ... + 3747.

It is an arithmetic number, because the mean of its divisors is an integer number (183568).

2^1229972 is an apocalyptic number.

It is an amenable number.

1229972 is a deficient number, since it is larger than the sum of its proper divisors (972844).

1229972 is a wasteful number, since it uses less digits than its factorization.

1229972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7198 (or 7196 counting only the distinct ones).

The product of its digits is 4536, while the sum is 32.

The square root of 1229972 is about 1109.0410271942. The cubic root of 1229972 is about 107.1433139451.

The spelling of 1229972 in words is "one million, two hundred twenty-nine thousand, nine hundred seventy-two".