2190544291 has 8 divisors (see below), whose sum is σ = 2364105744. Its totient is φ = 2017705440.

The previous prime is 2190544283. The next prime is 2190544309. The reversal of 2190544291 is 1924450912.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2190544291 - 2³ = 2190544283 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2190544291.

It is not an unprimeable number, because it can be changed into a prime (2190544241) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 174340 + ... + 186481.

It is an arithmetic number, because the mean of its divisors is an integer number (295513218).

Almost surely, 2^2190544291 is an apocalyptic number.

2190544291 is a deficient number, since it is larger than the sum of its proper divisors (173561453).

2190544291 is a wasteful number, since it uses less digits than its factorization.

2190544291 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 361301.

The product of its (nonzero) digits is 25920, while the sum is 37.

The square root of 2190544291 is about 46803.2508593153. The cubic root of 2190544291 is about 1298.7254353969.

The spelling of 2190544291 in words is "two billion, one hundred ninety million, five hundred forty-four thousand, two hundred ninety-one".