7222613642 has 8 divisors (see below), whose sum is σ = 11471209956. Its totient is φ = 3398876992.

The previous prime is 7222613641. The next prime is 7222613731. The reversal of 7222613642 is 2463162227.

It can be written as a sum of positive squares in 2 ways, for example, as 5517666961 + 1704946681 = 74281^2 + 41291^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×7222613642² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (7222613641) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 106214873 + ... + 106214940.

Almost surely, 2^7222613642 is an apocalyptic number.

7222613642 is a deficient number, since it is larger than the sum of its proper divisors (4248596314).

7222613642 is a wasteful number, since it uses less digits than its factorization.

7222613642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 212429832.

The product of its digits is 48384, while the sum is 35.

The square root of 7222613642 is about 84985.9614406991. The cubic root of 7222613642 is about 1932.9982519224.

Adding to 7222613642 its reverse (2463162227), we get a palindrome (9685775869).

The spelling of 7222613642 in words is "seven billion, two hundred twenty-two million, six hundred thirteen thousand, six hundred forty-two".