626420441 has 4 divisors (see below), whose sum is σ = 646627584. Its totient is φ = 606213300.

The previous prime is 626420429. The next prime is 626420447. The reversal of 626420441 is 144024626.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-626420441 is a prime.

It is a Duffinian 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, 10103525 + ... + 10103586.

It is an arithmetic number, because the mean of its divisors is an integer number (161656896).

Almost surely, 2^626420441 is an apocalyptic number.

It is an amenable number.

626420441 is a deficient number, since it is larger than the sum of its proper divisors (20207143).

626420441 is a wasteful number, since it uses less digits than its factorization.

626420441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20207142.

The product of its (nonzero) digits is 9216, while the sum is 29.

The square root of 626420441 is about 25028.3926970950. The cubic root of 626420441 is about 855.6351952557.

The spelling of 626420441 in words is "six hundred twenty-six million, four hundred twenty thousand, four hundred forty-one".