245833728 has 112 divisors (see below), whose sum is σ = 749686080. Its totient is φ = 70189056.

The previous prime is 245833711. The next prime is 245833733. The reversal of 245833728 is 827338542.

It is a tau number, because it is divible by the number of its divisors (112).

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

It is a nialpdrome in base 16.

It is a self number, because there is not a number n which added to its sum of digits gives 245833728.

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, 171318 + ... + 172746.

Almost surely, 2^245833728 is an apocalyptic number.

245833728 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 245833728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (374843040).

245833728 is an abundant number, since it is smaller than the sum of its proper divisors (503852352).

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

245833728 is an equidigital number, since it uses as much as digits as its factorization.

245833728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1465 (or 1441 counting only the distinct ones).

The product of its digits is 322560, while the sum is 42.

The square root of 245833728 is about 15679.0856876286. The cubic root of 245833728 is about 626.4414542065.

The spelling of 245833728 in words is "two hundred forty-five million, eight hundred thirty-three thousand, seven hundred twenty-eight".