245920194 has 48 divisors (see below), whose sum is σ = 574983864. Its totient is φ = 75513600.

The previous prime is 245920189. The next prime is 245920231. The reversal of 245920194 is 491029542.

It can be written as a sum of positive squares in 4 ways, for example, as 76790169 + 169130025 = 8763^2 + 13005^2 .

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 177384 + ... + 178764.

Almost surely, 2^245920194 is an apocalyptic number.

245920194 is an abundant number, since it is smaller than the sum of its proper divisors (329063670).

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

245920194 is a wasteful number, since it uses less digits than its factorization.

245920194 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2163 (or 2160 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 36.

The square root of 245920194 is about 15681.8428126289. The cubic root of 245920194 is about 626.5148907497.

The spelling of 245920194 in words is "two hundred forty-five million, nine hundred twenty thousand, one hundred ninety-four".