242700520 has 32 divisors (see below), whose sum is σ = 548224200. Its totient is φ = 96698368.

The previous prime is 242700487. The next prime is 242700529. The reversal of 242700520 is 25007242.

It can be written as a sum of positive squares in 4 ways, for example, as 217680516 + 25020004 = 14754^2 + 5002^2 .

It is a junction number, because it is equal to n+sod(n) for n = 242700491 and 242700500.

It is not an unprimeable number, because it can be changed into a prime (242700529) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1525 + ... + 22084.

Almost surely, 2^242700520 is an apocalyptic number.

242700520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

242700520 is an abundant number, since it is smaller than the sum of its proper divisors (305523680).

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

242700520 is a wasteful number, since it uses less digits than its factorization.

242700520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23877 (or 23873 counting only the distinct ones).

The product of its (nonzero) digits is 1120, while the sum is 22.

The square root of 242700520 is about 15578.8484811940. The cubic root of 242700520 is about 623.7686861791.

Adding to 242700520 its reverse (25007242), we get a palindrome (267707762).

The spelling of 242700520 in words is "two hundred forty-two million, seven hundred thousand, five hundred twenty".