2108646740 has 48 divisors (see below), whose sum is σ = 4512594240. Its totient is φ = 827523840.

The previous prime is 2108646703. The next prime is 2108646767. The reversal of 2108646740 is 476468012.

It is a super-2 number, since 2×2108646740² = 8892782148225255200, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2108646694 and 2108646703.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 228659 + ... + 237701.

It is an arithmetic number, because the mean of its divisors is an integer number (94012380).

Almost surely, 2^2108646740 is an apocalyptic number.

2108646740 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2108646740 is an abundant number, since it is smaller than the sum of its proper divisors (2403947500).

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

2108646740 is a wasteful number, since it uses less digits than its factorization.

2108646740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9272 (or 9270 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 38.

The square root of 2108646740 is about 45920.0037020904. The cubic root of 2108646740 is about 1282.3343510684.

The spelling of 2108646740 in words is "two billion, one hundred eight million, six hundred forty-six thousand, seven hundred forty".