1399492 has 12 divisors (see below), whose sum is σ = 2463916. Its totient is φ = 695520.

The previous prime is 1399477. The next prime is 1399493. The reversal of 1399492 is 2949931.

It can be written as a sum of positive squares in 2 ways, for example, as 367236 + 1032256 = 606^2 + 1016^2 .

It is not an unprimeable number, because it can be changed into a prime (1399493) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 243 + ... + 1690.

2^1399492 is an apocalyptic number.

It is an amenable number.

1399492 is a deficient number, since it is larger than the sum of its proper divisors (1064424).

1399492 is a wasteful number, since it uses less digits than its factorization.

1399492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2118 (or 2116 counting only the distinct ones).

The product of its digits is 17496, while the sum is 37.

The square root of 1399492 is about 1183.0012679621. The cubic root of 1399492 is about 111.8553617621.

It can be divided in two parts, 1399 and 492, that added together give a triangular number (1891 = T₆₁).

The spelling of 1399492 in words is "one million, three hundred ninety-nine thousand, four hundred ninety-two".