1990952056 has 8 divisors (see below), whose sum is σ = 3733035120. Its totient is φ = 995476024.

The previous prime is 1990952039. The next prime is 1990952057. The reversal of 1990952056 is 6502590991.

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

It is a hoax number, since the sum of its digits (46) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 1990951997 and 1990952015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1990952057) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 124434496 + ... + 124434511.

It is an arithmetic number, because the mean of its divisors is an integer number (466629390).

Almost surely, 2^1990952056 is an apocalyptic number.

It is an amenable number.

1990952056 is a deficient number, since it is larger than the sum of its proper divisors (1742083064).

1990952056 is a wasteful number, since it uses less digits than its factorization.

1990952056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 248869013 (or 248869009 counting only the distinct ones).

The product of its (nonzero) digits is 218700, while the sum is 46.

The square root of 1990952056 is about 44620.0857910426. The cubic root of 1990952056 is about 1258.0182283825.

The spelling of 1990952056 in words is "one billion, nine hundred ninety million, nine hundred fifty-two thousand, fifty-six".