72262242 has 24 divisors (see below), whose sum is σ = 168612444. Its totient is φ = 22234464.

The previous prime is 72262237. The next prime is 72262243. The reversal of 72262242 is 24226227.

It can be written as a sum of positive squares in 2 ways, for example, as 72233001 + 29241 = 8499^2 + 171^2 .

It is not an unprimeable number, because it can be changed into a prime (72262243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 154173 + ... + 154640.

Almost surely, 2^72262242 is an apocalyptic number.

72262242 is an abundant number, since it is smaller than the sum of its proper divisors (96350202).

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

72262242 is a wasteful number, since it uses less digits than its factorization.

72262242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 308834 (or 308831 counting only the distinct ones).

The product of its digits is 5376, while the sum is 27.

The square root of 72262242 is about 8500.7200871456. The cubic root of 72262242 is about 416.5212316605.

Adding to 72262242 its reverse (24226227), we get a palindrome (96488469).

The spelling of 72262242 in words is "seventy-two million, two hundred sixty-two thousand, two hundred forty-two".