2293455138 has 64 divisors (see below), whose sum is σ = 5191519872. Its totient is φ = 670602240.

The previous prime is 2293455137. The next prime is 2293455161. The reversal of 2293455138 is 8315543922.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 2293455138.

It is not an unprimeable number, because it can be changed into a prime (2293455133) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 114858 + ... + 133338.

It is an arithmetic number, because the mean of its divisors is an integer number (81117498).

Almost surely, 2^2293455138 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2293455138, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2595759936).

2293455138 is an abundant number, since it is smaller than the sum of its proper divisors (2898064734).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2293455138 is a wasteful number, since it uses less digits than its factorization.

2293455138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18579.

The product of its digits is 259200, while the sum is 42.

The square root of 2293455138 is about 47890.0317185111. The cubic root of 2293455138 is about 1318.7528659282.

The spelling of 2293455138 in words is "two billion, two hundred ninety-three million, four hundred fifty-five thousand, one hundred thirty-eight".