2192923421 has 16 divisors (see below), whose sum is σ = 2470532400. Its totient is φ = 1932446208.

The previous prime is 2192923409. The next prime is 2192923423. The reversal of 2192923421 is 1243292912.

2192923421 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 10725625 + 2182197796 = 3275^2 + 46714^2 .

It is a cyclic number.

It is not a de Polignac number, because 2192923421 - 2¹⁴ = 2192907037 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2192923423) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 875 + ... + 66231.

It is an arithmetic number, because the mean of its divisors is an integer number (154408275).

Almost surely, 2^2192923421 is an apocalyptic number.

It is an amenable number.

2192923421 is a deficient number, since it is larger than the sum of its proper divisors (277608979).

2192923421 is a wasteful number, since it uses less digits than its factorization.

2192923421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65488.

The product of its digits is 15552, while the sum is 35.

The square root of 2192923421 is about 46828.6602520294. The cubic root of 2192923421 is about 1299.1954431963.

The spelling of 2192923421 in words is "two billion, one hundred ninety-two million, nine hundred twenty-three thousand, four hundred twenty-one".