1996907136 has 64 divisors (see below), whose sum is σ = 6062047680. Its totient is φ = 570544128.

The previous prime is 1996907123. The next prime is 1996907177. The reversal of 1996907136 is 6317096991.

It is a tau number, because it is divible by the number of its divisors (64).

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, 368761 + ... + 374136.

It is an arithmetic number, because the mean of its divisors is an integer number (94719495).

Almost surely, 2^1996907136 is an apocalyptic number.

1996907136 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1996907136 is an abundant number, since it is smaller than the sum of its proper divisors (4065140544).

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

1996907136 is an equidigital number, since it uses as much as digits as its factorization.

1996907136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 742921 (or 742909 counting only the distinct ones).

The product of its (nonzero) digits is 551124, while the sum is 51.

The square root of 1996907136 is about 44686.7669002804. The cubic root of 1996907136 is about 1259.2712540817.

The spelling of 1996907136 in words is "one billion, nine hundred ninety-six million, nine hundred seven thousand, one hundred thirty-six".