120729870 has 24 divisors (see below), whose sum is σ = 313897896. Its totient is φ = 32194608.

The previous prime is 120729859. The next prime is 120729893. The reversal of 120729870 is 78927021.

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, 670632 + ... + 670811.

It is an arithmetic number, because the mean of its divisors is an integer number (13079079).

Almost surely, 2^120729870 is an apocalyptic number.

120729870 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

120729870 is an abundant number, since it is smaller than the sum of its proper divisors (193168026).

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

120729870 is a wasteful number, since it uses less digits than its factorization.

120729870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1341456 (or 1341453 counting only the distinct ones).

The product of its (nonzero) digits is 14112, while the sum is 36.

The square root of 120729870 is about 10987.7145030256. The cubic root of 120729870 is about 494.2404021491.

The spelling of 120729870 in words is "one hundred twenty million, seven hundred twenty-nine thousand, eight hundred seventy".