1604818245 has 32 divisors (see below), whose sum is σ = 2619187200. Its totient is φ = 838903104.

The previous prime is 1604818213. The next prime is 1604818273. The reversal of 1604818245 is 5428184061.

It is not a de Polignac number, because 1604818245 - 2⁵ = 1604818213 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 159844 + ... + 169586.

It is an arithmetic number, because the mean of its divisors is an integer number (81849600).

Almost surely, 2^1604818245 is an apocalyptic number.

1604818245 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1604818245 is a deficient number, since it is larger than the sum of its proper divisors (1014368955).

1604818245 is a wasteful number, since it uses less digits than its factorization.

1604818245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9969.

The product of its (nonzero) digits is 61440, while the sum is 39.

The square root of 1604818245 is about 40060.1827879005. The cubic root of 1604818245 is about 1170.7799715580.

The spelling of 1604818245 in words is "one billion, six hundred four million, eight hundred eighteen thousand, two hundred forty-five".