2193867405 has 12 divisors (see below), whose sum is σ = 3802703580. Its totient is φ = 1170062592.

The previous prime is 2193867383. The next prime is 2193867413. The reversal of 2193867405 is 5047683912.

2193867405 is digitally balanced in base 10, 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 2 ways, for example, as 662084361 + 1531783044 = 25731^2 + 39138^2 .

It is not a de Polignac number, because 2193867405 - 2²¹ = 2191770253 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45), and also a Moran number because the ratio is a prime number: 48752609 = 2193867405 / (2 + 1 + 9 + 3 + 8 + 6 + 7 + 4 + 0 + 5).

2193867405 is strictly pandigital in base 10.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 24376260 + ... + 24376349.

It is an arithmetic number, because the mean of its divisors is an integer number (316891965).

It is a 1-persistent number, because it is pandigital, but 2⋅2193867405 = 4387734810 is not.

Almost surely, 2^2193867405 is an apocalyptic number.

It is an amenable number.

2193867405 is a deficient number, since it is larger than the sum of its proper divisors (1608836175).

2193867405 is a wasteful number, since it uses less digits than its factorization.

2193867405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48752620 (or 48752617 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 45.

The square root of 2193867405 is about 46838.7382942794. The cubic root of 2193867405 is about 1299.3818372679.

The spelling of 2193867405 in words is "two billion, one hundred ninety-three million, eight hundred sixty-seven thousand, four hundred five".