245895690 has 16 divisors (see below), whose sum is σ = 590149728. Its totient is φ = 65572176.

The previous prime is 245895677. The next prime is 245895761. The reversal of 245895690 is 96598542.

It is a super-2 number, since 2×245895690² = 120929380721152200, which contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4098232 + ... + 4098291.

It is an arithmetic number, because the mean of its divisors is an integer number (36884358).

Almost surely, 2^245895690 is an apocalyptic number.

245895690 is an abundant number, since it is smaller than the sum of its proper divisors (344254038).

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

245895690 is a wasteful number, since it uses less digits than its factorization.

245895690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8196533.

The product of its (nonzero) digits is 777600, while the sum is 48.

The square root of 245895690 is about 15681.0615074363. The cubic root of 245895690 is about 626.4940809759.

The spelling of 245895690 in words is "two hundred forty-five million, eight hundred ninety-five thousand, six hundred ninety".