1990592 has 28 divisors (see below), whose sum is σ = 4160520. Its totient is φ = 942336.

The previous prime is 1990579. The next prime is 1990607. The reversal of 1990592 is 2950991.

1990592 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 398 + ... + 2034.

It is an arithmetic number, because the mean of its divisors is an integer number (148590).

2^1990592 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 1990592, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2080260).

1990592 is an abundant number, since it is smaller than the sum of its proper divisors (2169928).

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

1990592 is a wasteful number, since it uses less digits than its factorization.

1990592 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1668 (or 1658 counting only the distinct ones).

The product of its (nonzero) digits is 7290, while the sum is 35.

The square root of 1990592 is about 1410.8834112002. The cubic root of 1990592 is about 125.7942387896.

The spelling of 1990592 in words is "one million, nine hundred ninety thousand, five hundred ninety-two".