1915890996 has 48 divisors (see below), whose sum is σ = 4544886080. Its totient is φ = 628024320.

The previous prime is 1915890979. The next prime is 1915890997. The reversal of 1915890996 is 6990985191.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1915890997) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 568356 + ... + 571716.

Almost surely, 2^1915890996 is an apocalyptic number.

It is an amenable number.

1915890996 is an abundant number, since it is smaller than the sum of its proper divisors (2628995084).

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

1915890996 is a wasteful number, since it uses less digits than its factorization.

1915890996 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4144 (or 4142 counting only the distinct ones).

The product of its (nonzero) digits is 1574640, while the sum is 57.

The square root of 1915890996 is about 43770.8921087976. The cubic root of 1915890996 is about 1242.0057280990.

The spelling of 1915890996 in words is "one billion, nine hundred fifteen million, eight hundred ninety thousand, nine hundred ninety-six".