2158270044 has 48 divisors (see below), whose sum is σ = 6005626368. Its totient is φ = 589837248.

The previous prime is 2158270019. The next prime is 2158270063. The reversal of 2158270044 is 4400728512.

It is a junction number, because it is equal to n+sod(n) for n = 2158269987 and 2158270014.

It is a congruent number.

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, 556627 + ... + 560490.

It is an arithmetic number, because the mean of its divisors is an integer number (125117216).

Almost surely, 2^2158270044 is an apocalyptic number.

It is an amenable number.

2158270044 is an abundant number, since it is smaller than the sum of its proper divisors (3847356324).

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

2158270044 is a wasteful number, since it uses less digits than its factorization.

2158270044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1117154 (or 1117152 counting only the distinct ones).

The product of its (nonzero) digits is 17920, while the sum is 33.

The square root of 2158270044 is about 46457.1850632386. The cubic root of 2158270044 is about 1292.3156221049.

Adding to 2158270044 its reverse (4400728512), we get a palindrome (6558998556).

The spelling of 2158270044 in words is "two billion, one hundred fifty-eight million, two hundred seventy thousand, forty-four".