1916425880 has 32 divisors (see below), whose sum is σ = 4538905200. Its totient is φ = 726224256.

The previous prime is 1916425871. The next prime is 1916425891. The reversal of 1916425880 is 885246191.

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, 1260047 + ... + 1261566.

Almost surely, 2^1916425880 is an apocalyptic number.

1916425880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1916425880 is an abundant number, since it is smaller than the sum of its proper divisors (2622479320).

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

1916425880 is a wasteful number, since it uses less digits than its factorization.

1916425880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2521643 (or 2521639 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 44.

The square root of 1916425880 is about 43777.0017246499. The cubic root of 1916425880 is about 1242.1212995972.

The spelling of 1916425880 in words is "one billion, nine hundred sixteen million, four hundred twenty-five thousand, eight hundred eighty".