1399900 has 18 divisors (see below), whose sum is σ = 3038000. Its totient is φ = 559920.

The previous prime is 1399883. The next prime is 1399913. The reversal of 1399900 is 99931.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6900 + ... + 7099.

2^1399900 is an apocalyptic number.

1399900 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1399900 is an abundant number, since it is smaller than the sum of its proper divisors (1638100).

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

1399900 is a wasteful number, since it uses less digits than its factorization.

1399900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14013 (or 14006 counting only the distinct ones).

The product of its (nonzero) digits is 2187, while the sum is 31.

The square root of 1399900 is about 1183.1736981526. The cubic root of 1399900 is about 111.8662305996.

Adding to 1399900 its sum of digits (31), we get a palindrome (1399931).

The spelling of 1399900 in words is "one million, three hundred ninety-nine thousand, nine hundred".