2191926604 has 36 divisors (see below), whose sum is σ = 4616015040. Its totient is φ = 907001760.

The previous prime is 2191926601. The next prime is 2191926613. The reversal of 2191926604 is 4066291912.

It is not an unprimeable number, because it can be changed into a prime (2191926601) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 187132 + ... + 198499.

It is an arithmetic number, because the mean of its divisors is an integer number (128222640).

Almost surely, 2^2191926604 is an apocalyptic number.

It is an amenable number.

2191926604 is an abundant number, since it is smaller than the sum of its proper divisors (2424088436).

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

2191926604 is a wasteful number, since it uses less digits than its factorization.

2191926604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 385678 (or 385669 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 40.

The square root of 2191926604 is about 46818.0158058840. The cubic root of 2191926604 is about 1298.9985589262.

The spelling of 2191926604 in words is "two billion, one hundred ninety-one million, nine hundred twenty-six thousand, six hundred four".