120990630 has 32 divisors (see below), whose sum is σ = 290700000. Its totient is φ = 32228352.

The previous prime is 120990601. The next prime is 120990641. The reversal of 120990630 is 36099021.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35856 + ... + 39084.

It is an arithmetic number, because the mean of its divisors is an integer number (9084375).

Almost surely, 2^120990630 is an apocalyptic number.

120990630 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

120990630 is an abundant number, since it is smaller than the sum of its proper divisors (169709370).

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

120990630 is a wasteful number, since it uses less digits than its factorization.

120990630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4488.

The product of its (nonzero) digits is 2916, while the sum is 30.

The square root of 120990630 is about 10999.5740826634. The cubic root of 120990630 is about 494.5959768219.

The spelling of 120990630 in words is "one hundred twenty million, nine hundred ninety thousand, six hundred thirty".