245187648 has 70 divisors (see below), whose sum is σ = 726828366. Its totient is φ = 81727488.

The previous prime is 245187643. The next prime is 245187661. The reversal of 245187648 is 846781542.

245187648 is a `hidden beast` number, since 24 + 518 + 76 + 48 = 666.

It can be written as a sum of positive squares in only one way, i.e., 189117504 + 56070144 = 13752^2 + 7488^2 .

It is not an unprimeable number, because it can be changed into a prime (245187643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 18465 + ... + 28832.

Almost surely, 2^245187648 is an apocalyptic number.

It is an amenable number.

245187648 is an abundant number, since it is smaller than the sum of its proper divisors (481640718).

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

245187648 is an equidigital number, since it uses as much as digits as its factorization.

245187648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47321 (or 47302 counting only the distinct ones).

The product of its digits is 430080, while the sum is 45.

The square root of 245187648 is about 15658.4688906674. The cubic root of 245187648 is about 625.8921854289.

The spelling of 245187648 in words is "two hundred forty-five million, one hundred eighty-seven thousand, six hundred forty-eight".