245690928 has 160 divisors (see below), whose sum is σ = 814233600. Its totient is φ = 69479424.

The previous prime is 245690909. The next prime is 245690941. The reversal of 245690928 is 829096542.

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 31 ways as a sum of consecutive naturals, for example, 341353 + ... + 342071.

It is an arithmetic number, because the mean of its divisors is an integer number (5088960).

Almost surely, 2^245690928 is an apocalyptic number.

245690928 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 245690928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (407116800).

245690928 is an abundant number, since it is smaller than the sum of its proper divisors (568542672).

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

245690928 is a wasteful number, since it uses less digits than its factorization.

245690928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 856 (or 844 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 45.

The square root of 245690928 is about 15674.5311891616. The cubic root of 245690928 is about 626.3201348538.

The spelling of 245690928 in words is "two hundred forty-five million, six hundred ninety thousand, nine hundred twenty-eight".