2040140040 has 128 divisors (see below), whose sum is σ = 6320160000. Its totient is φ = 526445568.

The previous prime is 2040140009. The next prime is 2040140051. The reversal of 2040140040 is 400410402.

It is a super-2 number, since 2×2040140040² = 8324342765622403200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 882406 + ... + 884714.

It is an arithmetic number, because the mean of its divisors is an integer number (49376250).

Almost surely, 2^2040140040 is an apocalyptic number.

2040140040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2040140040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3160080000).

2040140040 is an abundant number, since it is smaller than the sum of its proper divisors (4280019960).

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

2040140040 is a wasteful number, since it uses less digits than its factorization.

2040140040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2559 (or 2555 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 15.

The square root of 2040140040 is about 45167.9094047976. The cubic root of 2040140040 is about 1268.2941613035.

Adding to 2040140040 its reverse (400410402), we get a palindrome (2440550442).

The spelling of 2040140040 in words is "two billion, forty million, one hundred forty thousand, forty".