245631604 has 12 divisors (see below), whose sum is σ = 441473284. Its totient is φ = 119496384.

The previous prime is 245631593. The next prime is 245631637. The reversal of 245631604 is 406136542.

It can be written as a sum of positive squares in 2 ways, for example, as 237221604 + 8410000 = 15402^2 + 2900^2 .

It is a super-2 number, since 2×245631604² = 120669769767225632, which contains 22 as substring.

It is a congruent number.

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, 829689 + ... + 829984.

Almost surely, 2^245631604 is an apocalyptic number.

It is an amenable number.

245631604 is a deficient number, since it is larger than the sum of its proper divisors (195841680).

245631604 is a wasteful number, since it uses less digits than its factorization.

245631604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1659714 (or 1659712 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 31.

The square root of 245631604 is about 15672.6387057190. The cubic root of 245631604 is about 626.2697208276.

The spelling of 245631604 in words is "two hundred forty-five million, six hundred thirty-one thousand, six hundred four".