2190531204 has 36 divisors (see below), whose sum is σ = 5828608240. Its totient is φ = 691746480.

The previous prime is 2190531193. The next prime is 2190531229. The reversal of 2190531204 is 4021350912.

2190531204 is a `hidden beast` number, since 21 + 90 + 531 + 20 + 4 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-3 number, since 3×2190531204³ (a number of 29 digits) contains 333 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1600582 + ... + 1601949.

Almost surely, 2^2190531204 is an apocalyptic number.

It is an amenable number.

2190531204 is an abundant number, since it is smaller than the sum of its proper divisors (3638077036).

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

2190531204 is a wasteful number, since it uses less digits than its factorization.

2190531204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3202560 (or 3202555 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 2190531204 is about 46803.1110504419. Note that the first 3 decimals coincide. The cubic root of 2190531204 is about 1298.7228490605.

The spelling of 2190531204 in words is "two billion, one hundred ninety million, five hundred thirty-one thousand, two hundred four".