2108357916 has 24 divisors (see below), whose sum is σ = 5622288000. Its totient is φ = 602387952.

The previous prime is 2108357903. The next prime is 2108357929. The reversal of 2108357916 is 6197538012.

It is an interprime number because it is at equal distance from previous prime (2108357903) and next prime (2108357929).

It is a Harshad number since it is a multiple of its sum of digits (42).

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, 12549666 + ... + 12549833.

It is an arithmetic number, because the mean of its divisors is an integer number (234262000).

Almost surely, 2^2108357916 is an apocalyptic number.

It is an amenable number.

2108357916 is an abundant number, since it is smaller than the sum of its proper divisors (3513930084).

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

2108357916 is a wasteful number, since it uses less digits than its factorization.

2108357916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25099513 (or 25099511 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 42.

The square root of 2108357916 is about 45916.8587340206. The cubic root of 2108357916 is about 1282.2758007446.

The spelling of 2108357916 in words is "two billion, one hundred eight million, three hundred fifty-seven thousand, nine hundred sixteen".