1990579312 has 40 divisors (see below), whose sum is σ = 3893938272. Its totient is φ = 985728000.

The previous prime is 1990579291. The next prime is 1990579319. The reversal of 1990579312 is 2139750991.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1990579319) 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, 1316637 + ... + 1318147.

Almost surely, 2^1990579312 is an apocalyptic number.

It is an amenable number.

1990579312 is a deficient number, since it is larger than the sum of its proper divisors (1903358960).

1990579312 is a wasteful number, since it uses less digits than its factorization.

1990579312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2257 (or 2251 counting only the distinct ones).

The product of its (nonzero) digits is 153090, while the sum is 46.

The square root of 1990579312 is about 44615.9087322000. The cubic root of 1990579312 is about 1257.9397151889.

The spelling of 1990579312 in words is "one billion, nine hundred ninety million, five hundred seventy-nine thousand, three hundred twelve".