1890492 has 24 divisors (see below), whose sum is σ = 4435536. Its totient is φ = 626688.

The previous prime is 1890487. The next prime is 1890509. The reversal of 1890492 is 2940981.

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, 2778 + ... + 3390.

It is an arithmetic number, because the mean of its divisors is an integer number (184814).

2^1890492 is an apocalyptic number.

1890492 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1890492 is an abundant number, since it is smaller than the sum of its proper divisors (2545044).

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

1890492 is a wasteful number, since it uses less digits than its factorization.

1890492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 877 (or 875 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 33.

The square root of 1890492 is about 1374.9516355130. The cubic root of 1890492 is about 123.6492864887.

The spelling of 1890492 in words is "one million, eight hundred ninety thousand, four hundred ninety-two".