1913900 has 18 divisors (see below), whose sum is σ = 4153380. Its totient is φ = 765520.

The previous prime is 1913893. The next prime is 1913903. The reversal of 1913900 is 93191.

It is a nialpdrome in base 5.

It is a zygodrome in base 5.

It is not an unprimeable number, because it can be changed into a prime (1913903) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 9470 + ... + 9669.

2^1913900 is an apocalyptic number.

1913900 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1913900 is an abundant number, since it is smaller than the sum of its proper divisors (2239480).

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

1913900 is a wasteful number, since it uses less digits than its factorization.

1913900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19153 (or 19146 counting only the distinct ones).

The product of its (nonzero) digits is 243, while the sum is 23.

The square root of 1913900 is about 1383.4377470635. The cubic root of 1913900 is about 124.1575347748.

The spelling of 1913900 in words is "one million, nine hundred thirteen thousand, nine hundred".