285739739130244 has 27 divisors (see below), whose sum is σ = 581684950703493. Its totient is φ = 122459786775648.

The previous prime is 285739739130199. The next prime is 285739739130247. The reversal of 285739739130244 is 442031937937582.

The square root of 285739739130244 is 16903838.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 1429961556100 + 284309777574144 = 1195810^2 + 16861488^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 285739739130244.

It is not an unprimeable number, because it can be changed into a prime (285739739130247) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 236050024 + ... + 237257440.

Almost surely, 2^{285739739130244} is an apocalyptic number.

285739739130244 is the 16903838-th square number.

It is an amenable number.

285739739130244 is an abundant number, since it is smaller than the sum of its proper divisors (295945211573249).

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

285739739130244 is an frugal number, since it uses more digits than its factorization.

285739739130244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2414852 (or 1207426 counting only the distinct ones).

The product of its (nonzero) digits is 274337280, while the sum is 67.

The spelling of 285739739130244 in words is "two hundred eighty-five trillion, seven hundred thirty-nine billion, seven hundred thirty-nine million, one hundred thirty thousand, two hundred forty-four".