2107391916 has 48 divisors (see below), whose sum is σ = 5915490560. Its totient is φ = 570421440.

The previous prime is 2107391887. The next prime is 2107391917. The reversal of 2107391916 is 6191937012.

It is a happy number.

It is a super-2 number, since 2×2107391916² = 8882201375244302112, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2107391917) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 658615 + ... + 661806.

Almost surely, 2^2107391916 is an apocalyptic number.

It is an amenable number.

2107391916 is an abundant number, since it is smaller than the sum of its proper divisors (3808098644).

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

2107391916 is a wasteful number, since it uses less digits than its factorization.

2107391916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1320454 (or 1320452 counting only the distinct ones).

The product of its (nonzero) digits is 20412, while the sum is 39.

The square root of 2107391916 is about 45906.3385165927. The cubic root of 2107391916 is about 1282.0799346253.

The spelling of 2107391916 in words is "two billion, one hundred seven million, three hundred ninety-one thousand, nine hundred sixteen".