245557284 has 48 divisors (see below), whose sum is σ = 656409600. Its totient is φ = 69988896.

The previous prime is 245557267. The next prime is 245557289. The reversal of 245557284 is 482755542.

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 (245557289) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33547 + ... + 40205.

It is an arithmetic number, because the mean of its divisors is an integer number (13675200).

Almost surely, 2^245557284 is an apocalyptic number.

It is an amenable number.

245557284 is an abundant number, since it is smaller than the sum of its proper divisors (410852316).

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

245557284 is a wasteful number, since it uses less digits than its factorization.

245557284 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7112 (or 7110 counting only the distinct ones).

The product of its digits is 448000, while the sum is 42.

The square root of 245557284 is about 15670.2675152660. The cubic root of 245557284 is about 626.2065516209.

The spelling of 245557284 in words is "two hundred forty-five million, five hundred fifty-seven thousand, two hundred eighty-four".