423661612 has 24 divisors (see below), whose sum is σ = 812184912. Its totient is φ = 191769600.

The previous prime is 423661597. The next prime is 423661621. The reversal of 423661612 is 216166324.

It is a super-2 number, since 2×423661612² = 358978322964877088, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9373 + ... + 30580.

It is an arithmetic number, because the mean of its divisors is an integer number (33841038).

Almost surely, 2^423661612 is an apocalyptic number.

It is an amenable number.

423661612 is a deficient number, since it is larger than the sum of its proper divisors (388523300).

423661612 is a wasteful number, since it uses less digits than its factorization.

423661612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40209 (or 40207 counting only the distinct ones).

The product of its digits is 10368, while the sum is 31.

The square root of 423661612 is about 20583.0418548863. The cubic root of 423661612 is about 751.0572419892.

The spelling of 423661612 in words is "four hundred twenty-three million, six hundred sixty-one thousand, six hundred twelve".