626406242 has 128 divisors (see below), whose sum is σ = 1319804928. Its totient is φ = 215424000.

The previous prime is 626406223. The next prime is 626406289. The reversal of 626406242 is 242604626.

It is a junction number, because it is equal to n+sod(n) for n = 626406199 and 626406208.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 6081563 + ... + 6081665.

It is an arithmetic number, because the mean of its divisors is an integer number (10310976).

Almost surely, 2^626406242 is an apocalyptic number.

626406242 is an abundant number, since it is smaller than the sum of its proper divisors (693398686).

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

626406242 is a wasteful number, since it uses less digits than its factorization.

626406242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 264.

The product of its (nonzero) digits is 27648, while the sum is 32.

The square root of 626406242 is about 25028.1090376401. The cubic root of 626406242 is about 855.6287303454.

The spelling of 626406242 in words is "six hundred twenty-six million, four hundred six thousand, two hundred forty-two".