1390492 has 12 divisors (see below), whose sum is σ = 2517480. Its totient is φ = 671216.

The previous prime is 1390489. The next prime is 1390507. The reversal of 1390492 is 2940931.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 1390492.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5878 + ... + 6109.

It is an arithmetic number, because the mean of its divisors is an integer number (209790).

2^1390492 is an apocalyptic number.

It is an amenable number.

1390492 is a deficient number, since it is larger than the sum of its proper divisors (1126988).

1390492 is a wasteful number, since it uses less digits than its factorization.

1390492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12020 (or 12018 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 28.

The square root of 1390492 is about 1179.1912482715. The cubic root of 1390492 is about 111.6150688576.

The spelling of 1390492 in words is "one million, three hundred ninety thousand, four hundred ninety-two".