40244000013 has 32 divisors (see below), whose sum is σ = 71100518400. Its totient is φ = 21996718128.

The previous prime is 40243999987. The next prime is 40244000021. The reversal of 40244000013 is 31000044204.

It is not a de Polignac number, because 40244000013 - 2¹² = 40243995917 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 40244000013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40244000213) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4624593 + ... + 4633286.

It is an arithmetic number, because the mean of its divisors is an integer number (2221891200).

Almost surely, 2^40244000013 is an apocalyptic number.

It is an amenable number.

40244000013 is a deficient number, since it is larger than the sum of its proper divisors (30856518387).

40244000013 is a wasteful number, since it uses less digits than its factorization.

40244000013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9257918 (or 9257912 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

Adding to 40244000013 its reverse (31000044204), we get a palindrome (71244044217).

The spelling of 40244000013 in words is "forty billion, two hundred forty-four million, thirteen", and thus it is an aban number.