245904436 has 18 divisors (see below), whose sum is σ = 434859810. Its totient is φ = 121662000.

The previous prime is 245904317. The next prime is 245904443. The reversal of 245904436 is 634409542.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 225600400 + 20304036 = 15020^2 + 4506^2 .

It is a junction number, because it is equal to n+sod(n) for n = 245904395 and 245904404.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 327061 + ... + 327811.

Almost surely, 2^245904436 is an apocalyptic number.

It is an amenable number.

245904436 is a deficient number, since it is larger than the sum of its proper divisors (188955374).

245904436 is an equidigital number, since it uses as much as digits as its factorization.

245904436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1615 (or 862 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 37.

The square root of 245904436 is about 15681.3403763836. The cubic root of 245904436 is about 626.5015085864.

The spelling of 245904436 in words is "two hundred forty-five million, nine hundred four thousand, four hundred thirty-six".