1990349232 has 40 divisors (see below), whose sum is σ = 5251140096. Its totient is φ = 649333056.

The previous prime is 1990349191. The next prime is 1990349233. The reversal of 1990349232 is 2329430991.

It is a super-2 number, since 2×1990349232² = 7922980130645979648, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1990349233) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 438868 + ... + 443379.

Almost surely, 2^1990349232 is an apocalyptic number.

1990349232 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1990349232 is an abundant number, since it is smaller than the sum of its proper divisors (3260790864).

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

1990349232 is a wasteful number, since it uses less digits than its factorization.

1990349232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 882305 (or 882299 counting only the distinct ones).

The product of its (nonzero) digits is 104976, while the sum is 42.

The square root of 1990349232 is about 44613.3302052201. The cubic root of 1990349232 is about 1257.8912472346.

The spelling of 1990349232 in words is "one billion, nine hundred ninety million, three hundred forty-nine thousand, two hundred thirty-two".