245857164 has 48 divisors (see below), whose sum is σ = 663936000. Its totient is φ = 69353856.

The previous prime is 245857163. The next prime is 245857177. The reversal of 245857164 is 461758542.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is not an unprimeable number, because it can be changed into a prime (245857163) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11889 + ... + 25160.

It is an arithmetic number, because the mean of its divisors is an integer number (13832000).

Almost surely, 2^245857164 is an apocalyptic number.

It is an amenable number.

245857164 is an abundant number, since it is smaller than the sum of its proper divisors (418078836).

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

245857164 is a wasteful number, since it uses less digits than its factorization.

245857164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37142 (or 37140 counting only the distinct ones).

The product of its digits is 268800, while the sum is 42.

The square root of 245857164 is about 15679.8330348253. The cubic root of 245857164 is about 626.4613603650.

The spelling of 245857164 in words is "two hundred forty-five million, eight hundred fifty-seven thousand, one hundred sixty-four".