1959136404 has 12 divisors (see below), whose sum is σ = 4571318304. Its totient is φ = 653045464.

The previous prime is 1959136381. The next prime is 1959136433. The reversal of 1959136404 is 4046319591.

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

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 81630672 + ... + 81630695.

It is an arithmetic number, because the mean of its divisors is an integer number (380943192).

Almost surely, 2^1959136404 is an apocalyptic number.

It is an amenable number.

1959136404 is an abundant number, since it is smaller than the sum of its proper divisors (2612181900).

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

1959136404 is a wasteful number, since it uses less digits than its factorization.

1959136404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163261374 (or 163261372 counting only the distinct ones).

The product of its (nonzero) digits is 116640, while the sum is 42.

The square root of 1959136404 is about 44262.1328451307. The cubic root of 1959136404 is about 1251.2811193913.

The spelling of 1959136404 in words is "one billion, nine hundred fifty-nine million, one hundred thirty-six thousand, four hundred four".