1992774 has 32 divisors (see below), whose sum is σ = 4824576. Its totient is φ = 535680.

The previous prime is 1992769. The next prime is 1992779. The reversal of 1992774 is 4772991.

It is an interprime number because it is at equal distance from previous prime (1992769) and next prime (1992779).

It is a super-2 number, since 2×1992774² = 7942296430152, which contains 22 as substring.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 682 + ... + 2109.

It is an arithmetic number, because the mean of its divisors is an integer number (150768).

2^1992774 is an apocalyptic number.

1992774 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

1992774 is an abundant number, since it is smaller than the sum of its proper divisors (2831802).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1992774 is a wasteful number, since it uses less digits than its factorization.

1992774 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2820.

The product of its digits is 31752, while the sum is 39.

The square root of 1992774 is about 1411.6564737924. The cubic root of 1992774 is about 125.8401853887.

The spelling of 1992774 in words is "one million, nine hundred ninety-two thousand, seven hundred seventy-four".