120455778 has 24 divisors (see below), whose sum is σ = 255920112. Its totient is φ = 37789504.

The previous prime is 120455773. The next prime is 120455789. The reversal of 120455778 is 877554021.

It is not an unprimeable number, because it can be changed into a prime (120455773) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 33000 + ... + 36467.

It is an arithmetic number, because the mean of its divisors is an integer number (10663338).

Almost surely, 2^120455778 is an apocalyptic number.

120455778 is an abundant number, since it is smaller than the sum of its proper divisors (135464334).

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

120455778 is a wasteful number, since it uses less digits than its factorization.

120455778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69506 (or 69489 counting only the distinct ones).

The product of its (nonzero) digits is 78400, while the sum is 39.

The square root of 120455778 is about 10975.2347583093. The cubic root of 120455778 is about 493.8660954798.

The spelling of 120455778 in words is "one hundred twenty million, four hundred fifty-five thousand, seven hundred seventy-eight".