245021604 has 12 divisors (see below), whose sum is σ = 571717104. Its totient is φ = 81673864.

The previous prime is 245021593. The next prime is 245021627. The reversal of 245021604 is 406120542.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10209222 + ... + 10209245.

It is an arithmetic number, because the mean of its divisors is an integer number (47643092).

Almost surely, 2^245021604 is an apocalyptic number.

It is an amenable number.

245021604 is an abundant number, since it is smaller than the sum of its proper divisors (326695500).

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

245021604 is a wasteful number, since it uses less digits than its factorization.

245021604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20418474 (or 20418472 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 245021604 is about 15653.1659417512. The cubic root of 245021604 is about 625.7508663051.

It can be divided in two parts, 24502 and 1604, that added together give a triangular number (26106 = T₂₂₈).

The spelling of 245021604 in words is "two hundred forty-five million, twenty-one thousand, six hundred four".