2189460394 has 32 divisors (see below), whose sum is σ = 3626456832. Its totient is φ = 991328800.

The previous prime is 2189460389. The next prime is 2189460407. The reversal of 2189460394 is 4930649812.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 746559 + ... + 749485.

It is an arithmetic number, because the mean of its divisors is an integer number (113326776).

Almost surely, 2^2189460394 is an apocalyptic number.

2189460394 is a deficient number, since it is larger than the sum of its proper divisors (1436996438).

2189460394 is a wasteful number, since it uses less digits than its factorization.

2189460394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3243 (or 3221 counting only the distinct ones).

The product of its (nonzero) digits is 373248, while the sum is 46.

The square root of 2189460394 is about 46791.6701347580. The cubic root of 2189460394 is about 1298.5111938421.

The spelling of 2189460394 in words is "two billion, one hundred eighty-nine million, four hundred sixty thousand, three hundred ninety-four".