245778612 has 24 divisors (see below), whose sum is σ = 574826112. Its totient is φ = 81734400.

The previous prime is 245778593. The next prime is 245778613. The reversal of 245778612 is 216877542.

It is a super-2 number, since 2×245778612² = 120814252233293088, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245778613) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 18589 + ... + 28932.

It is an arithmetic number, because the mean of its divisors is an integer number (23951088).

Almost surely, 2^245778612 is an apocalyptic number.

It is an amenable number.

245778612 is an abundant number, since it is smaller than the sum of its proper divisors (329047500).

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

245778612 is a wasteful number, since it uses less digits than its factorization.

245778612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47959 (or 47957 counting only the distinct ones).

The product of its digits is 188160, while the sum is 42.

The square root of 245778612 is about 15677.3279611036. The cubic root of 245778612 is about 626.3946345829.

The spelling of 245778612 in words is "two hundred forty-five million, seven hundred seventy-eight thousand, six hundred twelve".