120913992 has 128 divisors (see below), whose sum is σ = 352800000. Its totient is φ = 38320128.

The previous prime is 120913943. The next prime is 120913993. The reversal of 120913992 is 299319021.

It is a happy number.

It is a super-2 number, since 2×120913992² = 29240386922752128, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (120913993) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 607509 + ... + 607707.

It is an arithmetic number, because the mean of its divisors is an integer number (2756250).

Almost surely, 2^120913992 is an apocalyptic number.

120913992 is a gapful number since it is divisible by the number (12) 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 120913992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (176400000).

120913992 is an abundant number, since it is smaller than the sum of its proper divisors (231886008).

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

120913992 is a wasteful number, since it uses less digits than its factorization.

120913992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 340 (or 330 counting only the distinct ones).

The product of its (nonzero) digits is 8748, while the sum is 36.

The square root of 120913992 is about 10996.0898504878. The cubic root of 120913992 is about 494.4915256135.

The spelling of 120913992 in words is "one hundred twenty million, nine hundred thirteen thousand, nine hundred ninety-two".