423989626 has 8 divisors (see below), whose sum is σ = 636095520. Its totient is φ = 211957788.

The previous prime is 423989597. The next prime is 423989633. The reversal of 423989626 is 626989324.

It is a happy number.

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

It is a self number, because there is not a number n which added to its sum of digits gives 423989626.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 816 + ... + 29131.

It is an arithmetic number, because the mean of its divisors is an integer number (79511940).

Almost surely, 2^423989626 is an apocalyptic number.

423989626 is a deficient number, since it is larger than the sum of its proper divisors (212105894).

423989626 is a wasteful number, since it uses less digits than its factorization.

423989626 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37028.

The product of its digits is 1119744, while the sum is 49.

The square root of 423989626 is about 20591.0083774448. The cubic root of 423989626 is about 751.2510237961.

The spelling of 423989626 in words is "four hundred twenty-three million, nine hundred eighty-nine thousand, six hundred twenty-six".