2040040040 has 16 divisors (see below), whose sum is σ = 4590090180. Its totient is φ = 816016000.

The previous prime is 2040040021. The next prime is 2040040073. The reversal of 2040040040 is 400400402.

It can be written as a sum of positive squares in 2 ways, for example, as 1970116996 + 69923044 = 44386^2 + 8362^2 .

2040040040 is a modest number, since divided by 40040 gives 2040 as remainder.

It is a junction number, because it is equal to n+sod(n) for n = 2040039997 and 2040040024.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25500461 + ... + 25500540.

Almost surely, 2^2040040040 is an apocalyptic number.

2040040040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2040040040 is an abundant number, since it is smaller than the sum of its proper divisors (2550050140).

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

2040040040 is a wasteful number, since it uses less digits than its factorization.

2040040040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51001012 (or 51001008 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 14.

The square root of 2040040040 is about 45166.8024106201. The cubic root of 2040040040 is about 1268.2734386267.

Adding to 2040040040 its reverse (400400402), we get a palindrome (2440440442).

The spelling of 2040040040 in words is "two billion, forty million, forty thousand, forty", and thus it is an eban number.