245881944 has 96 divisors (see below), whose sum is σ = 830269440. Its totient is φ = 63864000.

The previous prime is 245881913. The next prime is 245881967. The reversal of 245881944 is 449188542.

245881944 is a `hidden beast` number, since 2 + 458 + 8 + 194 + 4 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 245881944.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 16632 + ... + 27719.

It is an arithmetic number, because the mean of its divisors is an integer number (8648640).

Almost surely, 2^245881944 is an apocalyptic number.

245881944 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

245881944 is an abundant number, since it is smaller than the sum of its proper divisors (584387496).

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

245881944 is a wasteful number, since it uses less digits than its factorization.

245881944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44381 (or 44374 counting only the distinct ones).

The product of its digits is 368640, while the sum is 45.

The square root of 245881944 is about 15680.6232019011. The cubic root of 245881944 is about 626.4824067193.

The spelling of 245881944 in words is "two hundred forty-five million, eight hundred eighty-one thousand, nine hundred forty-four".