120030990 has 32 divisors (see below), whose sum is σ = 288557856. Its totient is φ = 31954560.

The previous prime is 120030983. The next prime is 120030991. The reversal of 120030990 is 99030021.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 120030990.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120030991) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16804 + ... + 22856.

It is an arithmetic number, because the mean of its divisors is an integer number (9017433).

Almost surely, 2^120030990 is an apocalyptic number.

120030990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

120030990 is an abundant number, since it is smaller than the sum of its proper divisors (168526866).

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

120030990 is a wasteful number, since it uses less digits than its factorization.

120030990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6724.

The product of its (nonzero) digits is 486, while the sum is 24.

The square root of 120030990 is about 10955.8655522966. The cubic root of 120030990 is about 493.2848711627.

The spelling of 120030990 in words is "one hundred twenty million, thirty thousand, nine hundred ninety".