242215626 has 32 divisors (see below), whose sum is σ = 514055808. Its totient is φ = 75822080.

The previous prime is 242215607. The next prime is 242215657. The reversal of 242215626 is 626512242.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 242215593 and 242215602.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 48946 + ... + 53666.

It is an arithmetic number, because the mean of its divisors is an integer number (16064244).

Almost surely, 2^242215626 is an apocalyptic number.

242215626 is an abundant number, since it is smaller than the sum of its proper divisors (271840182).

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

242215626 is a wasteful number, since it uses less digits than its factorization.

242215626 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5246.

The product of its digits is 11520, while the sum is 30.

The square root of 242215626 is about 15563.2781251252. The cubic root of 242215626 is about 623.3529978132.

Adding to 242215626 its reverse (626512242), we get a palindrome (868727868).

The spelling of 242215626 in words is "two hundred forty-two million, two hundred fifteen thousand, six hundred twenty-six".