1239604 has 12 divisors (see below), whose sum is σ = 2220064. Its totient is φ = 605304.

The previous prime is 1239599. The next prime is 1239607. The reversal of 1239604 is 4069321.

It is a hoax number, since the sum of its digits (25) coincides with the sum of the digits of its distinct prime factors.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1239607) 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, 3432 + ... + 3775.

2^1239604 is an apocalyptic number.

It is an amenable number.

1239604 is a deficient number, since it is larger than the sum of its proper divisors (980460).

1239604 is a wasteful number, since it uses less digits than its factorization.

1239604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7254 (or 7252 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 25.

The square root of 1239604 is about 1113.3750491187. The cubic root of 1239604 is about 107.4222693898.

The spelling of 1239604 in words is "one million, two hundred thirty-nine thousand, six hundred four".