120032440 has 128 divisors (see below), whose sum is σ = 309769920. Its totient is φ = 41472000.

The previous prime is 120032357. The next prime is 120032489. The reversal of 120032440 is 44230021.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1188390 + ... + 1188490.

Almost surely, 2^120032440 is an apocalyptic number.

120032440 is a gapful number since it is divisible by the number (10) 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 120032440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (154884960).

120032440 is an abundant number, since it is smaller than the sum of its proper divisors (189737480).

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

120032440 is a wasteful number, since it uses less digits than its factorization.

120032440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 233 (or 229 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 120032440 is about 10955.9317266949. The cubic root of 120032440 is about 493.2868574836.

Adding to 120032440 its reverse (44230021), we get a palindrome (164262461).

The spelling of 120032440 in words is "one hundred twenty million, thirty-two thousand, four hundred forty".