2040500040 has 64 divisors (see below), whose sum is σ = 6180969600. Its totient is φ = 538847232.

The previous prime is 2040500029. The next prime is 2040500093. The reversal of 2040500040 is 400050402.

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

It is a junction number, because it is equal to n+sod(n) for n = 2040499992 and 2040500019.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 70185 + ... + 94904.

It is an arithmetic number, because the mean of its divisors is an integer number (96577650).

Almost surely, 2^2040500040 is an apocalyptic number.

2040500040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2040500040 is an abundant number, since it is smaller than the sum of its proper divisors (4140469560).

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

2040500040 is a wasteful number, since it uses less digits than its factorization.

2040500040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 165206 (or 165202 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 15.

The square root of 2040500040 is about 45171.8943592141. The cubic root of 2040500040 is about 1268.3687573338.

Adding to 2040500040 its reverse (400050402), we get a palindrome (2440550442).

The spelling of 2040500040 in words is "two billion, forty million, five hundred thousand, forty".