2100461640 has 32 divisors (see below), whose sum is σ = 6301385280. Its totient is φ = 560123072.

The previous prime is 2100461633. The next prime is 2100461689. The reversal of 2100461640 is 461640012.

It is a super-2 number, since 2×2100461640² = 8823878202222979200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 2100461640.

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, 8751804 + ... + 8752043.

It is an arithmetic number, because the mean of its divisors is an integer number (196918290).

Almost surely, 2^2100461640 is an apocalyptic number.

2100461640 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2100461640 is an abundant number, since it is smaller than the sum of its proper divisors (4200923640).

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

2100461640 is a wasteful number, since it uses less digits than its factorization.

2100461640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17503861 (or 17503857 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 2100461640 is about 45830.7935781173. The cubic root of 2100461640 is about 1280.6729940752.

The spelling of 2100461640 in words is "two billion, one hundred million, four hundred sixty-one thousand, six hundred forty".