120899072 has 120 divisors (see below), whose sum is σ = 289222560. Its totient is φ = 50319360.

The previous prime is 120899069. The next prime is 120899111. The reversal of 120899072 is 270998021.

It is a super-2 number, since 2×120899072² = 29233171220922368, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1530329 + ... + 1530407.

It is an arithmetic number, because the mean of its divisors is an integer number (2410188).

Almost surely, 2^120899072 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 120899072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (144611280).

120899072 is an abundant number, since it is smaller than the sum of its proper divisors (168323488).

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

120899072 is an frugal number, since it uses more digits than its factorization.

120899072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172 (or 149 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 38.

The square root of 120899072 is about 10995.4114065823. The cubic root of 120899072 is about 494.4711857645.

The spelling of 120899072 in words is "one hundred twenty million, eight hundred ninety-nine thousand, seventy-two".