2044155240 has 48 divisors (see below), whose sum is σ = 6643505700. Its totient is φ = 545107968.

The previous prime is 2044155233. The next prime is 2044155307. The reversal of 2044155240 is 425514402.

2044155240 is a `hidden beast` number, since 2 + 0 + 4 + 415 + 5 + 240 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 1927385604 + 116769636 = 43902^2 + 10806^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2838745 + ... + 2839464.

Almost surely, 2^2044155240 is an apocalyptic number.

2044155240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2044155240 is an abundant number, since it is smaller than the sum of its proper divisors (4599350460).

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

2044155240 is a wasteful number, since it uses less digits than its factorization.

2044155240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5678226 (or 5678219 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 27.

The square root of 2044155240 is about 45212.3350425523. The cubic root of 2044155240 is about 1269.1256593779.

Adding to 2044155240 its reverse (425514402), we get a palindrome (2469669642).

The spelling of 2044155240 in words is "two billion, forty-four million, one hundred fifty-five thousand, two hundred forty".