1390504 has 16 divisors (see below), whose sum is σ = 2644020. Its totient is φ = 685440.

The previous prime is 1390489. The next prime is 1390507. The reversal of 1390504 is 4050931.

It can be written as a sum of positive squares in 2 ways, for example, as 1232100 + 158404 = 1110^2 + 398^2 .

It is not an unprimeable number, because it can be changed into a prime (1390507) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 607 + ... + 1774.

2^1390504 is an apocalyptic number.

It is an amenable number.

1390504 is a deficient number, since it is larger than the sum of its proper divisors (1253516).

1390504 is a wasteful number, since it uses less digits than its factorization.

1390504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2460 (or 2456 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 22.

The square root of 1390504 is about 1179.1963364936. The cubic root of 1390504 is about 111.6153899375.

The spelling of 1390504 in words is "one million, three hundred ninety thousand, five hundred four".