2040002040 has 128 divisors (see below), whose sum is σ = 6544825920. Its totient is φ = 506880000.

The previous prime is 2040002017. The next prime is 2040002101. The reversal of 2040002040 is 402000402.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a super Niven number, because it is divisible the sum of any subset of its (nonzero) digits.

It is a congruent number.

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, 201090 + ... + 210990.

Almost surely, 2^2040002040 is an apocalyptic number.

2040002040 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 2040002040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3272412960).

2040002040 is an abundant number, since it is smaller than the sum of its proper divisors (4504823880).

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

2040002040 is a wasteful number, since it uses less digits than its factorization.

2040002040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10033 (or 10029 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 12.

The square root of 2040002040 is about 45166.3817457188. The cubic root of 2040002040 is about 1268.2655638319.

Adding to 2040002040 its reverse (402000402), we get a palindrome (2442002442).

It can be divided in two parts, 204000 and 2040, that multiplied together give a square (416160000 = 20400²).

The spelling of 2040002040 in words is "two billion, forty million, two thousand, forty", and thus it is an eban number.