120423040 has 64 divisors (see below), whose sum is σ = 291483360. Its totient is φ = 47567872.

The previous prime is 120423031. The next prime is 120423041. The reversal of 120423040 is 40324021.

It is a tau number, because it is divible by the number of its divisors (64).

It is a Harshad number since it is a multiple of its sum of digits (16).

It is not an unprimeable number, because it can be changed into a prime (120423041) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 51987 + ... + 54253.

Almost surely, 2^120423040 is an apocalyptic number.

120423040 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 120423040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (145741680).

120423040 is an abundant number, since it is smaller than the sum of its proper divisors (171060320).

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

120423040 is an equidigital number, since it uses as much as digits as its factorization.

120423040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2369 (or 2357 counting only the distinct ones).

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

The square root of 120423040 is about 10973.7432082221. The cubic root of 120423040 is about 493.8213497275.

Adding to 120423040 its reverse (40324021), we get a palindrome (160747061).

The spelling of 120423040 in words is "one hundred twenty million, four hundred twenty-three thousand, forty".