120904890 has 32 divisors (see below), whose sum is σ = 290666880. Its totient is φ = 32186304.

The previous prime is 120904837. The next prime is 120904891. The reversal of 120904890 is 98409021.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (120904891) 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, 16296 + ... + 22524.

It is an arithmetic number, because the mean of its divisors is an integer number (9083340).

Almost surely, 2^120904890 is an apocalyptic number.

120904890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

120904890 is an abundant number, since it is smaller than the sum of its proper divisors (169761990).

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

120904890 is a wasteful number, since it uses less digits than its factorization.

120904890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6886.

The product of its (nonzero) digits is 5184, while the sum is 33.

The square root of 120904890 is about 10995.6759683068. The cubic root of 120904890 is about 494.4791174140.

The spelling of 120904890 in words is "one hundred twenty million, nine hundred four thousand, eight hundred ninety".