120387860 has 12 divisors (see below), whose sum is σ = 252814548. Its totient is φ = 48155136.

The previous prime is 120387853. The next prime is 120387881. The reversal of 120387860 is 68783021.

It can be written as a sum of positive squares in 2 ways, for example, as 19465744 + 100922116 = 4412^2 + 10046^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 120387860.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3009677 + ... + 3009716.

It is an arithmetic number, because the mean of its divisors is an integer number (21067879).

Almost surely, 2^120387860 is an apocalyptic number.

120387860 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

120387860 is an abundant number, since it is smaller than the sum of its proper divisors (132426688).

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

120387860 is a wasteful number, since it uses less digits than its factorization.

120387860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6019402 (or 6019400 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 35.

The square root of 120387860 is about 10972.1401740955. The cubic root of 120387860 is about 493.7732572498.

The spelling of 120387860 in words is "one hundred twenty million, three hundred eighty-seven thousand, eight hundred sixty".