420344626 has 32 divisors (see below), whose sum is σ = 687960000. Its totient is φ = 191471040.

The previous prime is 420344623. The next prime is 420344627. The reversal of 420344626 is 626443024.

It is not an unprimeable number, because it can be changed into a prime (420344621) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 842125 + ... + 842623.

It is an arithmetic number, because the mean of its divisors is an integer number (21498750).

Almost surely, 2^420344626 is an apocalyptic number.

420344626 is a deficient number, since it is larger than the sum of its proper divisors (267615374).

420344626 is a wasteful number, since it uses less digits than its factorization.

420344626 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 874.

The product of its (nonzero) digits is 27648, while the sum is 31.

The square root of 420344626 is about 20502.3078213161. The cubic root of 420344626 is about 749.0920128932.

The spelling of 420344626 in words is "four hundred twenty million, three hundred forty-four thousand, six hundred twenty-six".