2189139310 has 32 divisors (see below), whose sum is σ = 4126738752. Its totient is φ = 834535680.

The previous prime is 2189139301. The next prime is 2189139311. The reversal of 2189139310 is 139319812.

It is a super-2 number, since 2×2189139310² = 9584661837174552200, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2189139310.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2189139311) 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, 46530 + ... + 80890.

It is an arithmetic number, because the mean of its divisors is an integer number (128960586).

Almost surely, 2^2189139310 is an apocalyptic number.

2189139310 is a deficient number, since it is larger than the sum of its proper divisors (1937599442).

2189139310 is a wasteful number, since it uses less digits than its factorization.

2189139310 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34668.

The product of its (nonzero) digits is 11664, while the sum is 37.

The square root of 2189139310 is about 46788.2390136667. The cubic root of 2189139310 is about 1298.4477152559.

The spelling of 2189139310 in words is "two billion, one hundred eighty-nine million, one hundred thirty-nine thousand, three hundred ten".