1915000990 has 16 divisors (see below), whose sum is σ = 3939430752. Its totient is φ = 656571744.

The previous prime is 1915000987. The next prime is 1915001003. The reversal of 1915000990 is 990005191.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13678509 + ... + 13678648.

It is an arithmetic number, because the mean of its divisors is an integer number (246214422).

Almost surely, 2^1915000990 is an apocalyptic number.

1915000990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1915000990 is an abundant number, since it is smaller than the sum of its proper divisors (2024429762).

1915000990 is a wasteful number, since it uses less digits than its factorization.

1915000990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27357171.

The product of its (nonzero) digits is 3645, while the sum is 34.

The square root of 1915000990 is about 43760.7242855966. The cubic root of 1915000990 is about 1241.8133782971.

The spelling of 1915000990 in words is "one billion, nine hundred fifteen million, nine hundred ninety", and thus it is an aban number.