120000438 has 24 divisors (see below), whose sum is σ = 261663168. Its totient is φ = 39744432.

The previous prime is 120000403. The next prime is 120000449. The reversal of 120000438 is 834000021.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a self number, because there is not a number n which added to its sum of digits gives 120000438.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 18406 + ... + 24057.

It is an arithmetic number, because the mean of its divisors is an integer number (10902632).

Almost surely, 2^120000438 is an apocalyptic number.

120000438 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

120000438 is an abundant number, since it is smaller than the sum of its proper divisors (141662730).

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

120000438 is a wasteful number, since it uses less digits than its factorization.

120000438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42628 (or 42625 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 120000438 is about 10954.4711419584. The cubic root of 120000438 is about 493.2430149770.

Adding to 120000438 its reverse (834000021), we get a palindrome (954000459).

The spelling of 120000438 in words is "one hundred twenty million, four hundred thirty-eight", and thus it is an aban number.