1914118920 has 96 divisors (see below), whose sum is σ = 7109593920. Its totient is φ = 437512320.

The previous prime is 1914118909. The next prime is 1914118979. The reversal of 1914118920 is 298114191.

It is a Harshad number since it is a multiple of its sum of digits (36).

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, 377266 + ... + 382305.

It is an arithmetic number, because the mean of its divisors is an integer number (74058270).

Almost surely, 2^1914118920 is an apocalyptic number.

1914118920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1914118920 is an abundant number, since it is smaller than the sum of its proper divisors (5195475000).

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

1914118920 is a wasteful number, since it uses less digits than its factorization.

1914118920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 759595 (or 759588 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 36.

The square root of 1914118920 is about 43750.6447952484. The cubic root of 1914118920 is about 1241.6226848276.

The spelling of 1914118920 in words is "one billion, nine hundred fourteen million, one hundred eighteen thousand, nine hundred twenty".