2040044240 has 40 divisors (see below), whose sum is σ = 5107959528. Its totient is φ = 753246720.

The previous prime is 2040044219. The next prime is 2040044261. The reversal of 2040044240 is 424400402.

It is an interprime number because it is at equal distance from previous prime (2040044219) and next prime (2040044261).

It can be written as a sum of positive squares in 4 ways, for example, as 189667984 + 1850376256 = 13772^2 + 43016^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 979751 + ... + 981830.

Almost surely, 2^2040044240 is an apocalyptic number.

2040044240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2040044240 is an abundant number, since it is smaller than the sum of its proper divisors (3067915288).

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

2040044240 is a wasteful number, since it uses less digits than its factorization.

2040044240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1961607 (or 1961601 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 20.

The square root of 2040044240 is about 45166.8489049214. The cubic root of 2040044240 is about 1268.2743089927.

Adding to 2040044240 its reverse (424400402), we get a palindrome (2464444642).

The spelling of 2040044240 in words is "two billion, forty million, forty-four thousand, two hundred forty".