1990524 has 12 divisors (see below), whose sum is σ = 4644584. Its totient is φ = 663504.

The previous prime is 1990523. The next prime is 1990529. The reversal of 1990524 is 4250991.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 1990491 and 1990500.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1990523) 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, 82927 + ... + 82950.

2^1990524 is an apocalyptic number.

It is an amenable number.

1990524 is an abundant number, since it is smaller than the sum of its proper divisors (2654060).

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

1990524 is a wasteful number, since it uses less digits than its factorization.

1990524 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165884 (or 165882 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 30.

The square root of 1990524 is about 1410.8593126177. The cubic root of 1990524 is about 125.7928063672.

The spelling of 1990524 in words is "one million, nine hundred ninety thousand, five hundred twenty-four".