245406656 has 56 divisors (see below), whose sum is σ = 533278080. Its totient is φ = 111123200.

The previous prime is 245406653. The next prime is 245406677. The reversal of 245406656 is 656604542.

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245406653) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 252251 + ... + 253221.

Almost surely, 2^245406656 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 245406656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (266639040).

245406656 is an abundant number, since it is smaller than the sum of its proper divisors (287871424).

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

245406656 is a wasteful number, since it uses less digits than its factorization.

245406656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1353 (or 1343 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 38.

The square root of 245406656 is about 15665.4606060594. The cubic root of 245406656 is about 626.0784843772.

The spelling of 245406656 in words is "two hundred forty-five million, four hundred six thousand, six hundred fifty-six".