2196421923 has 8 divisors (see below), whose sum is σ = 3029547600. Its totient is φ = 1413788768.

The previous prime is 2196421873. The next prime is 2196421933. The reversal of 2196421923 is 3291246912.

2196421923 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 2196421923 - 2¹³ = 2196413731 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2196421933) 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, 12623028 + ... + 12623201.

It is an arithmetic number, because the mean of its divisors is an integer number (378693450).

Almost surely, 2^2196421923 is an apocalyptic number.

2196421923 is a deficient number, since it is larger than the sum of its proper divisors (833125677).

2196421923 is a wasteful number, since it uses less digits than its factorization.

2196421923 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25246261.

The product of its digits is 46656, while the sum is 39.

The square root of 2196421923 is about 46865.9996479324. Note that the first 3 decimals coincide. The cubic root of 2196421923 is about 1299.8859708661.

The spelling of 2196421923 in words is "two billion, one hundred ninety-six million, four hundred twenty-one thousand, nine hundred twenty-three".