622747226 has 4 divisors (see below), whose sum is σ = 934120842. Its totient is φ = 311373612.

The previous prime is 622747219. The next prime is 622747261.

622747226 is nontrivially palindromic in base 10.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 384199201 + 238548025 = 19601^2 + 15445^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 622747226.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 155686805 + ... + 155686808.

Almost surely, 2^622747226 is an apocalyptic number.

622747226 is a deficient number, since it is larger than the sum of its proper divisors (311373616).

622747226 is a wasteful number, since it uses less digits than its factorization.

622747226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 311373615.

The product of its digits is 112896, while the sum is 38.

The square root of 622747226 is about 24954.9038467392. The cubic root of 622747226 is about 853.9594861463.

The spelling of 622747226 in words is "six hundred twenty-two million, seven hundred forty-seven thousand, two hundred twenty-six".