1974992 has 40 divisors (see below), whose sum is σ = 4158216. Its totient is φ = 905216.

The previous prime is 1974989. The next prime is 1975019. The reversal of 1974992 is 2994791.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 817216 + 1157776 = 904^2 + 1076^2 .

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, 14348 + ... + 14484.

2^1974992 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1974992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2079108).

1974992 is an abundant number, since it is smaller than the sum of its proper divisors (2183224).

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

1974992 is a wasteful number, since it uses less digits than its factorization.

1974992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 215 (or 209 counting only the distinct ones).

The product of its digits is 40824, while the sum is 41.

The square root of 1974992 is about 1405.3440859804. The cubic root of 1974992 is about 125.4647658003.

The spelling of 1974992 in words is "one million, nine hundred seventy-four thousand, nine hundred ninety-two".