1390900 has 36 divisors (see below), whose sum is σ = 3451168. Its totient is φ = 476640.

The previous prime is 1390891. The next prime is 1390901. The reversal of 1390900 is 90931.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1390901) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 294 + ... + 1693.

2^1390900 is an apocalyptic number.

1390900 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1390900 is an abundant number, since it is smaller than the sum of its proper divisors (2060268).

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

1390900 is a wasteful number, since it uses less digits than its factorization.

1390900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2008 (or 2001 counting only the distinct ones).

The product of its (nonzero) digits is 243, while the sum is 22.

The square root of 1390900 is about 1179.3642355100. The cubic root of 1390900 is about 111.6259845370.

The spelling of 1390900 in words is "one million, three hundred ninety thousand, nine hundred".