626420442 has 8 divisors (see below), whose sum is σ = 1252840896. Its totient is φ = 208806812.

The previous prime is 626420429. The next prime is 626420447. The reversal of 626420442 is 244024626.

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

626420442 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (626420447) 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, 52201698 + ... + 52201709.

It is an arithmetic number, because the mean of its divisors is an integer number (156605112).

Almost surely, 2^626420442 is an apocalyptic number.

626420442 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

626420442 is a wasteful number, since it uses less digits than its factorization.

626420442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104403412.

The product of its (nonzero) digits is 18432, while the sum is 30.

The square root of 626420442 is about 25028.3927170723. The cubic root of 626420442 is about 855.6351957110.

The spelling of 626420442 in words is "six hundred twenty-six million, four hundred twenty thousand, four hundred forty-two".