120428992 has 56 divisors (see below), whose sum is σ = 254396240. Its totient is φ = 56401920.

The previous prime is 120428963. The next prime is 120429007. The reversal of 120428992 is 299824021.

It is a super-2 number, since 2×120428992² = 29006284228272128, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 117442 + ... + 118462.

It is an arithmetic number, because the mean of its divisors is an integer number (4542790).

Almost surely, 2^120428992 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 120428992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (127198120).

120428992 is an abundant number, since it is smaller than the sum of its proper divisors (133967248).

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

120428992 is a wasteful number, since it uses less digits than its factorization.

120428992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1149 (or 1139 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 37.

The square root of 120428992 is about 10974.0143976578. The cubic root of 120428992 is about 493.8294854249.

The spelling of 120428992 in words is "one hundred twenty million, four hundred twenty-eight thousand, nine hundred ninety-two".