120455940 has 48 divisors (see below), whose sum is σ = 367940160. Its totient is φ = 29201280.

The previous prime is 120455927. The next prime is 120455947. The reversal of 120455940 is 49554021.

It is a super-3 number, since 3×120455940³ (a number of 25 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 120455898 and 120455907.

It is not an unprimeable number, because it can be changed into a prime (120455947) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 90595 + ... + 91914.

It is an arithmetic number, because the mean of its divisors is an integer number (7665420).

Almost surely, 2^120455940 is an apocalyptic number.

120455940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

120455940 is an abundant number, since it is smaller than the sum of its proper divisors (247484220).

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

120455940 is a wasteful number, since it uses less digits than its factorization.

120455940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 182532 (or 182530 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 30.

The square root of 120455940 is about 10975.2421385589. The cubic root of 120455940 is about 493.8663168785.

The spelling of 120455940 in words is "one hundred twenty million, four hundred fifty-five thousand, nine hundred forty".