423915984 has 40 divisors (see below), whose sum is σ = 1216797120. Its totient is φ = 141305184.

The previous prime is 423915971. The next prime is 423916019. The reversal of 423915984 is 489519324.

It is a super-2 number, since 2×423915984² = 359409522981376512, which contains 22 as substring.

It is a congruent number.

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, 490212 + ... + 491075.

It is an arithmetic number, because the mean of its divisors is an integer number (30419928).

Almost surely, 2^423915984 is an apocalyptic number.

It is an amenable number.

423915984 is an abundant number, since it is smaller than the sum of its proper divisors (792881136).

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

423915984 is a wasteful number, since it uses less digits than its factorization.

423915984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 981304 (or 981292 counting only the distinct ones).

The product of its digits is 311040, while the sum is 45.

The square root of 423915984 is about 20589.2200920773. The cubic root of 423915984 is about 751.2075267953.

The spelling of 423915984 in words is "four hundred twenty-three million, nine hundred fifteen thousand, nine hundred eighty-four".