626942122 has 4 divisors (see below), whose sum is σ = 940413186. Its totient is φ = 313471060.

The previous prime is 626942089. The next prime is 626942123. The reversal of 626942122 is 221249626.

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., 414977641 + 211964481 = 20371^2 + 14559^2 .

It is not an unprimeable number, because it can be changed into a prime (626942123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156735529 + ... + 156735532.

Almost surely, 2^626942122 is an apocalyptic number.

626942122 is a deficient number, since it is larger than the sum of its proper divisors (313471064).

626942122 is a wasteful number, since it uses less digits than its factorization.

626942122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 313471063.

The product of its digits is 20736, while the sum is 34.

The square root of 626942122 is about 25038.8123120886. The cubic root of 626942122 is about 855.8726527954.

The spelling of 626942122 in words is "six hundred twenty-six million, nine hundred forty-two thousand, one hundred twenty-two".