1604002253 has 16 divisors (see below), whose sum is σ = 1864642560. Its totient is φ = 1351437696.

The previous prime is 1604002247. The next prime is 1604002291. The reversal of 1604002253 is 3522004061.

It is not a de Polignac number, because 1604002253 - 2¹⁰ = 1604001229 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1604002453) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 88625 + ... + 105177.

It is an arithmetic number, because the mean of its divisors is an integer number (116540160).

Almost surely, 2^1604002253 is an apocalyptic number.

It is an amenable number.

1604002253 is a deficient number, since it is larger than the sum of its proper divisors (260640307).

1604002253 is a wasteful number, since it uses less digits than its factorization.

1604002253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16796.

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 1604002253 is about 40049.9969163544. The cubic root of 1604002253 is about 1170.5815048346.

The spelling of 1604002253 in words is "one billion, six hundred four million, two thousand, two hundred fifty-three".