1399800 has 48 divisors (see below), whose sum is σ = 4341240. Its totient is φ = 373120.

The previous prime is 1399793. The next prime is 1399813. The reversal of 1399800 is 89931.

It is a happy number.

It is a Smith number, since the sum of its digits (30) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 567 + ... + 1766.

2^1399800 is an apocalyptic number.

1399800 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1399800 is an abundant number, since it is smaller than the sum of its proper divisors (2941440).

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

1399800 is a wasteful number, since it uses less digits than its factorization.

1399800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2352 (or 2343 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 30.

The square root of 1399800 is about 1183.1314381758. The cubic root of 1399800 is about 111.8635668642.

The spelling of 1399800 in words is "one million, three hundred ninety-nine thousand, eight hundred".