245881580 has 48 divisors (see below), whose sum is σ = 591022656. Its totient is φ = 84172800.

The previous prime is 245881579. The next prime is 245881583. The reversal of 245881580 is 85188542.

It is a happy number.

It is a Smith number, since the sum of its digits (41) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (245881583) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 152780 + ... + 154380.

It is an arithmetic number, because the mean of its divisors is an integer number (12312972).

Almost surely, 2^245881580 is an apocalyptic number.

245881580 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

245881580 is an abundant number, since it is smaller than the sum of its proper divisors (345141076).

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

245881580 is a wasteful number, since it uses less digits than its factorization.

245881580 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2714 (or 2712 counting only the distinct ones).

The product of its (nonzero) digits is 102400, while the sum is 41.

The square root of 245881580 is about 15680.6115952153. The cubic root of 245881580 is about 626.4820975741.

The spelling of 245881580 in words is "two hundred forty-five million, eight hundred eighty-one thousand, five hundred eighty".