68572242 has 24 divisors (see below), whose sum is σ = 149892444. Its totient is φ = 22654464.

The previous prime is 68572241. The next prime is 68572243. The reversal of 68572242 is 24227586.

68572242 is a `hidden beast` number, since 68 + 572 + 24 + 2 = 666.

It is an interprime number because it is at equal distance from previous prime (68572241) and next prime (68572243).

It can be written as a sum of positive squares in 2 ways, for example, as 51108201 + 17464041 = 7149^2 + 4179^2 .

It is a junction number, because it is equal to n+sod(n) for n = 68572197 and 68572206.

It is not an unprimeable number, because it can be changed into a prime (68572241) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14823 + ... + 18890.

Almost surely, 2^68572242 is an apocalyptic number.

68572242 is an abundant number, since it is smaller than the sum of its proper divisors (81320202).

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

68572242 is a wasteful number, since it uses less digits than its factorization.

68572242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33834 (or 33831 counting only the distinct ones).

The product of its digits is 53760, while the sum is 36.

The square root of 68572242 is about 8280.8358273788. The cubic root of 68572242 is about 409.3072616939.

It can be divided in two parts, 685 and 72242, that added together give a palindrome (72927).

The spelling of 68572242 in words is "sixty-eight million, five hundred seventy-two thousand, two hundred forty-two".