1915422916 has 72 divisors (see below), whose sum is σ = 3825607968. Its totient is φ = 832089600.

The previous prime is 1915422881. The next prime is 1915422931. The reversal of 1915422916 is 6192245191.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4101315 + ... + 4101781.

It is an arithmetic number, because the mean of its divisors is an integer number (53133444).

Almost surely, 2^1915422916 is an apocalyptic number.

It is an amenable number.

1915422916 is a deficient number, since it is larger than the sum of its proper divisors (1910185052).

1915422916 is a wasteful number, since it uses less digits than its factorization.

1915422916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 641 (or 608 counting only the distinct ones).

The product of its digits is 38880, while the sum is 40.

The square root of 1915422916 is about 43765.5448498017. The cubic root of 1915422916 is about 1241.9045731805.

The spelling of 1915422916 in words is "one billion, nine hundred fifteen million, four hundred twenty-two thousand, nine hundred sixteen".