120871944 has 24 divisors (see below), whose sum is σ = 327361710. Its totient is φ = 40290624.

The previous prime is 120871937. The next prime is 120871951. The reversal of 120871944 is 449178021.

It is an interprime number because it is at equal distance from previous prime (120871937) and next prime (120871951).

It can be written as a sum of positive squares in only one way, i.e., 119639844 + 1232100 = 10938^2 + 1110^2 .

It is a tau number, because it is divible by the number of its divisors (24).

It is a super-2 number, since 2×120871944² = 29220053692678272, which contains 22 as substring.

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

It is a junction number, because it is equal to n+sod(n) for n = 120871899 and 120871908.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 839317 + ... + 839460.

Almost surely, 2^120871944 is an apocalyptic number.

It is an amenable number.

120871944 is an abundant number, since it is smaller than the sum of its proper divisors (206489766).

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

120871944 is a wasteful number, since it uses less digits than its factorization.

120871944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1678789 (or 1678782 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 36.

The square root of 120871944 is about 10994.1777318724. The cubic root of 120871944 is about 494.4341989414.

The spelling of 120871944 in words is "one hundred twenty million, eight hundred seventy-one thousand, nine hundred forty-four".