1399912 has 8 divisors (see below), whose sum is σ = 2624850. Its totient is φ = 699952.

The previous prime is 1399883. The next prime is 1399913. The reversal of 1399912 is 2199931.

It can be written as a sum of positive squares in only one way, i.e., 972196 + 427716 = 986^2 + 654^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (1399913) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 87487 + ... + 87502.

2^1399912 is an apocalyptic number.

It is an amenable number.

1399912 is a deficient number, since it is larger than the sum of its proper divisors (1224938).

1399912 is a wasteful number, since it uses less digits than its factorization.

1399912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 174995 (or 174991 counting only the distinct ones).

The product of its digits is 4374, while the sum is 34.

The square root of 1399912 is about 1183.1787692483. The cubic root of 1399912 is about 111.8665502393.

The spelling of 1399912 in words is "one million, three hundred ninety-nine thousand, nine hundred twelve".