2196523690 has 64 divisors (see below), whose sum is σ = 4368349440. Its totient is φ = 791493120.

The previous prime is 2196523687. The next prime is 2196523691. The reversal of 2196523690 is 963256912.

It is a super-2 number, since 2×2196523690² = 9649432641462432200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2196523691) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 789582 + ... + 792358.

It is an arithmetic number, because the mean of its divisors is an integer number (68255460).

Almost surely, 2^2196523690 is an apocalyptic number.

2196523690 is a deficient number, since it is larger than the sum of its proper divisors (2171825750).

2196523690 is a wasteful number, since it uses less digits than its factorization.

2196523690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3007.

The product of its (nonzero) digits is 174960, while the sum is 43.

The square root of 2196523690 is about 46867.0853584901. The cubic root of 2196523690 is about 1299.9060464644.

The spelling of 2196523690 in words is "two billion, one hundred ninety-six million, five hundred twenty-three thousand, six hundred ninety".