1992772 has 12 divisors (see below), whose sum is σ = 3514896. Its totient is φ = 988520.

The previous prime is 1992769. The next prime is 1992779. The reversal of 1992772 is 2772991.

It is a super-2 number, since 2×1992772² = 7942280487968, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1992779) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1378 + ... + 2425.

It is an arithmetic number, because the mean of its divisors is an integer number (292908).

2^1992772 is an apocalyptic number.

It is an amenable number.

1992772 is a deficient number, since it is larger than the sum of its proper divisors (1522124).

1992772 is a wasteful number, since it uses less digits than its factorization.

1992772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3938 (or 3936 counting only the distinct ones).

The product of its digits is 15876, while the sum is 37.

The square root of 1992772 is about 1411.6557654046. The cubic root of 1992772 is about 125.8401432899.

The spelling of 1992772 in words is "one million, nine hundred ninety-two thousand, seven hundred seventy-two".