403642112 has 36 divisors (see below), whose sum is σ = 816782400. Its totient is φ = 199047168.

The previous prime is 403642073. The next prime is 403642121. The reversal of 403642112 is 211246304.

It is a congruent number.

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, 7889 + ... + 29487.

It is an arithmetic number, because the mean of its divisors is an integer number (22688400).

Almost surely, 2^403642112 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 403642112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (408391200).

403642112 is an abundant number, since it is smaller than the sum of its proper divisors (413140288).

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

403642112 is an equidigital number, since it uses as much as digits as its factorization.

403642112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21688 (or 21674 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 403642112 is about 20090.8464729588. The cubic root of 403642112 is about 739.0358224368.

Adding to 403642112 its reverse (211246304), we get a palindrome (614888416).

The spelling of 403642112 in words is "four hundred three million, six hundred forty-two thousand, one hundred twelve".