1220972 has 6 divisors (see below), whose sum is σ = 2136708. Its totient is φ = 610484.

The previous prime is 1220969. The next prime is 1220981. The reversal of 1220972 is 2790221.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 152618 + ... + 152625.

It is an arithmetic number, because the mean of its divisors is an integer number (356118).

2^1220972 is an apocalyptic number.

It is an amenable number.

1220972 is a deficient number, since it is larger than the sum of its proper divisors (915736).

1220972 is a wasteful number, since it uses less digits than its factorization.

1220972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 305247 (or 305245 counting only the distinct ones).

The product of its (nonzero) digits is 504, while the sum is 23.

The square root of 1220972 is about 1104.9760178393. The cubic root of 1220972 is about 106.8813428289.

The spelling of 1220972 in words is "one million, two hundred twenty thousand, nine hundred seventy-two".