1918715460 has 48 divisors (see below), whose sum is σ = 5379855936. Its totient is φ = 510947712.

The previous prime is 1918715413. The next prime is 1918715471. The reversal of 1918715460 is 645178191.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22167 + ... + 65793.

It is an arithmetic number, because the mean of its divisors is an integer number (112080332).

Almost surely, 2^1918715460 is an apocalyptic number.

1918715460 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1918715460 is an abundant number, since it is smaller than the sum of its proper divisors (3461140476).

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

1918715460 is a wasteful number, since it uses less digits than its factorization.

1918715460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44372 (or 44370 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 42.

The square root of 1918715460 is about 43803.1444076792. The cubic root of 1918715460 is about 1242.6157624586.

The spelling of 1918715460 in words is "one billion, nine hundred eighteen million, seven hundred fifteen thousand, four hundred sixty".