423920112 has 120 divisors (see below), whose sum is σ = 1375828608. Its totient is φ = 110098560.

The previous prime is 423920099. The next prime is 423920113. The reversal of 423920112 is 211029324.

It is a super-2 number, since 2×423920112² = 359416522716185088, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (423920113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 35443 + ... + 45869.

Almost surely, 2^423920112 is an apocalyptic number.

423920112 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 423920112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (687914304).

423920112 is an abundant number, since it is smaller than the sum of its proper divisors (951908496).

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

423920112 is a wasteful number, since it uses less digits than its factorization.

423920112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10467 (or 10450 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 423920112 is about 20589.3203384667. The cubic root of 423920112 is about 751.2099651516.

Adding to 423920112 its reverse (211029324), we get a palindrome (634949436).

The spelling of 423920112 in words is "four hundred twenty-three million, nine hundred twenty thousand, one hundred twelve".