120399272 has 48 divisors (see below), whose sum is σ = 265292820. Its totient is φ = 51072000.

The previous prime is 120399263. The next prime is 120399281. The reversal of 120399272 is 272993021.

It is an interprime number because it is at equal distance from previous prime (120399263) and next prime (120399281).

It can be written as a sum of positive squares in 2 ways, for example, as 80532676 + 39866596 = 8974^2 + 6314^2 .

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 11 ways as a sum of consecutive naturals, for example, 38072 + ... + 41112.

Almost surely, 2^120399272 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 120399272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (132646410).

120399272 is an abundant number, since it is smaller than the sum of its proper divisors (144893548).

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

120399272 is a wasteful number, since it uses less digits than its factorization.

120399272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3162 (or 3151 counting only the distinct ones).

The product of its (nonzero) digits is 13608, while the sum is 35.

The square root of 120399272 is about 10972.6602061670. The cubic root of 120399272 is about 493.7888589403.

The spelling of 120399272 in words is "one hundred twenty million, three hundred ninety-nine thousand, two hundred seventy-two".