1990232 has 8 divisors (see below), whose sum is σ = 3731700. Its totient is φ = 995112.

The previous prime is 1990229. The next prime is 1990237. The reversal of 1990232 is 2320991.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×1990232² = 7922046827648, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1990237) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 124382 + ... + 124397.

2^1990232 is an apocalyptic number.

It is an amenable number.

1990232 is a deficient number, since it is larger than the sum of its proper divisors (1741468).

1990232 is a wasteful number, since it uses less digits than its factorization.

1990232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 248785 (or 248781 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 26.

The square root of 1990232 is about 1410.7558257898. The cubic root of 1990232 is about 125.7866550061.

It can be divided in two parts, 1990 and 232, that added together give a palindrome (2222).

The spelling of 1990232 in words is "one million, nine hundred ninety thousand, two hundred thirty-two".