2190090812 has 48 divisors (see below), whose sum is σ = 4781794752. Its totient is φ = 854530560.

The previous prime is 2190090757. The next prime is 2190090827. The reversal of 2190090812 is 2180900912.

It is a happy number.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 14639 + ... + 67782.

It is an arithmetic number, because the mean of its divisors is an integer number (99620724).

Almost surely, 2^2190090812 is an apocalyptic number.

It is an amenable number.

2190090812 is an abundant number, since it is smaller than the sum of its proper divisors (2591703940).

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

2190090812 is a wasteful number, since it uses less digits than its factorization.

2190090812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82518 (or 82516 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 32.

The square root of 2190090812 is about 46798.4060839683. The cubic root of 2190090812 is about 1298.6358099768.

The spelling of 2190090812 in words is "two billion, one hundred ninety million, ninety thousand, eight hundred twelve".