626042422 has 4 divisors (see below), whose sum is σ = 939063636. Its totient is φ = 313021210.

The previous prime is 626042411. The next prime is 626042447. The reversal of 626042422 is 224240626.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 224240626 = 2 ⋅112120313.

It is a super-2 number, since 2×626042422² = 783858228287252168, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156510604 + ... + 156510607.

It is an arithmetic number, because the mean of its divisors is an integer number (234765909).

Almost surely, 2^626042422 is an apocalyptic number.

626042422 is a deficient number, since it is larger than the sum of its proper divisors (313021214).

626042422 is a wasteful number, since it uses less digits than its factorization.

626042422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 313021213.

The product of its (nonzero) digits is 9216, while the sum is 28.

The square root of 626042422 is about 25020.8397540930. The cubic root of 626042422 is about 855.4630470606.

The spelling of 626042422 in words is "six hundred twenty-six million, forty-two thousand, four hundred twenty-two".