40040002040 has 16 divisors (see below), whose sum is σ = 90090004680. Its totient is φ = 16016000800.

The previous prime is 40040002031. The next prime is 40040002069. The reversal of 40040002040 is 4020004004.

40040002040 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

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, 500499986 + ... + 500500065.

Almost surely, 2^40040002040 is an apocalyptic number.

40040002040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40040002040 is an abundant number, since it is smaller than the sum of its proper divisors (50050002640).

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

40040002040 is a wasteful number, since it uses less digits than its factorization.

40040002040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1001000062 (or 1001000058 counting only the distinct ones).

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

Adding to 40040002040 its reverse (4020004004), we get a palindrome (44060006044).

The spelling of 40040002040 in words is "forty billion, forty million, two thousand, forty", and thus it is an eban number.