2109552340 has 24 divisors (see below), whose sum is σ = 5062925952. Its totient is φ = 723275040.

The previous prime is 2109552337. The next prime is 2109552383. The reversal of 2109552340 is 432559012.

It is a super-2 number, since 2×2109552340² = 8900422150398951200, which contains 22 as substring.

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, 7533976 + ... + 7534255.

It is an arithmetic number, because the mean of its divisors is an integer number (210955248).

Almost surely, 2^2109552340 is an apocalyptic number.

2109552340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2109552340 is an abundant number, since it is smaller than the sum of its proper divisors (2953373612).

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

2109552340 is a wasteful number, since it uses less digits than its factorization.

2109552340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15068247 (or 15068245 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 31.

The square root of 2109552340 is about 45929.8632699903. The cubic root of 2109552340 is about 1282.5178994015.

The spelling of 2109552340 in words is "two billion, one hundred nine million, five hundred fifty-two thousand, three hundred forty".