1379900 has 18 divisors (see below), whose sum is σ = 2994600. Its totient is φ = 551920.

The previous prime is 1379897. The next prime is 1379923. The reversal of 1379900 is 99731.

It is a plaindrome in base 12.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6800 + ... + 6999.

2^1379900 is an apocalyptic number.

1379900 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1379900 is an abundant number, since it is smaller than the sum of its proper divisors (1614700).

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

1379900 is a wasteful number, since it uses less digits than its factorization.

1379900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13813 (or 13806 counting only the distinct ones).

The product of its (nonzero) digits is 1701, while the sum is 29.

The square root of 1379900 is about 1174.6914488494. The cubic root of 1379900 is about 111.3309388691.

It can be divided in two parts, 1379 and 900, that multiplied together give a triangular number (1241100 = T₁₅₇₅).

The spelling of 1379900 in words is "one million, three hundred seventy-nine thousand, nine hundred".