245442188 has 12 divisors (see below), whose sum is σ = 429753912. Its totient is φ = 122655360.

The previous prime is 245442181. The next prime is 245442199. The reversal of 245442188 is 881244542.

It is not an unprimeable number, because it can be changed into a prime (245442181) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7493 + ... + 23388.

It is an arithmetic number, because the mean of its divisors is an integer number (35812826).

Almost surely, 2^245442188 is an apocalyptic number.

It is an amenable number.

245442188 is a deficient number, since it is larger than the sum of its proper divisors (184311724).

245442188 is a wasteful number, since it uses less digits than its factorization.

245442188 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32872 (or 32870 counting only the distinct ones).

The product of its digits is 81920, while the sum is 38.

The square root of 245442188 is about 15666.5946523168. The cubic root of 245442188 is about 626.1086991882.

The spelling of 245442188 in words is "two hundred forty-five million, four hundred forty-two thousand, one hundred eighty-eight".