1253604 has 24 divisors (see below), whose sum is σ = 3191328. Its totient is φ = 379840.

The previous prime is 1253599. The next prime is 1253621. The reversal of 1253604 is 4063521.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4617 + ... + 4880.

It is an arithmetic number, because the mean of its divisors is an integer number (132972).

2^1253604 is an apocalyptic number.

It is an amenable number.

1253604 is an abundant number, since it is smaller than the sum of its proper divisors (1937724).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1253604 is a wasteful number, since it uses less digits than its factorization.

1253604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9515 (or 9513 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 1253604 is about 1119.6445864648. The cubic root of 1253604 is about 107.8251629319.

The spelling of 1253604 in words is "one million, two hundred fifty-three thousand, six hundred four".