4000026040 has 16 divisors (see below), whose sum is σ = 9000058680. Its totient is φ = 1600010400.

The previous prime is 4000026013. The next prime is 4000026059. The reversal of 4000026040 is 406200004.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50000286 + ... + 50000365.

Almost surely, 2^4000026040 is an apocalyptic number.

4000026040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4000026040 is an abundant number, since it is smaller than the sum of its proper divisors (5000032640).

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

4000026040 is a wasteful number, since it uses less digits than its factorization.

4000026040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100000662 (or 100000658 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 4000026040 is about 63245.7590673082. The cubic root of 4000026040 is about 1587.4044966210.

Adding to 4000026040 its reverse (406200004), we get a palindrome (4406226044).

The spelling of 4000026040 in words is "four billion, twenty-six thousand, forty".