2191258904 has 16 divisors (see below), whose sum is σ = 4324853400. Its totient is φ = 1037964672.

The previous prime is 2191258903. The next prime is 2191258907. The reversal of 2191258904 is 4098521912.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2191258903) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7207937 + ... + 7208240.

Almost surely, 2^2191258904 is an apocalyptic number.

It is an amenable number.

2191258904 is a deficient number, since it is larger than the sum of its proper divisors (2133594496).

2191258904 is a wasteful number, since it uses less digits than its factorization.

2191258904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14416202 (or 14416198 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 41.

The square root of 2191258904 is about 46810.8844607747. The cubic root of 2191258904 is about 1298.8666461422.

The spelling of 2191258904 in words is "two billion, one hundred ninety-one million, two hundred fifty-eight thousand, nine hundred four".