120818730 has 16 divisors (see below), whose sum is σ = 289965024. Its totient is φ = 32218320.

The previous prime is 120818699. The next prime is 120818743. The reversal of 120818730 is 37818021.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 4027291 = 120818730 / (1 + 2 + 0 + 8 + 1 + 8 + 7 + 3 + 0).

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 7 ways as a sum of consecutive naturals, for example, 2013616 + ... + 2013675.

It is an arithmetic number, because the mean of its divisors is an integer number (18122814).

Almost surely, 2^120818730 is an apocalyptic number.

120818730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

120818730 is an abundant number, since it is smaller than the sum of its proper divisors (169146294).

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

120818730 is a wasteful number, since it uses less digits than its factorization.

120818730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4027301.

The product of its (nonzero) digits is 2688, while the sum is 30.

The square root of 120818730 is about 10991.7573663177. The cubic root of 120818730 is about 494.3616298994.

The spelling of 120818730 in words is "one hundred twenty million, eight hundred eighteen thousand, seven hundred thirty".