40351402013 has 8 divisors (see below), whose sum is σ = 43592443608. Its totient is φ = 37129944384.

The previous prime is 40351402001. The next prime is 40351402027. The reversal of 40351402013 is 31020415304.

It can be written as a sum of positive squares in 4 ways, for example, as 837118489 + 39514283524 = 28933^2 + 198782^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 40351402013 - 2¹⁶ = 40351336477 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 40351402013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40351402213) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4891706 + ... + 4899947.

It is an arithmetic number, because the mean of its divisors is an integer number (5449055451).

Almost surely, 2^40351402013 is an apocalyptic number.

It is an amenable number.

40351402013 is a deficient number, since it is larger than the sum of its proper divisors (3241041595).

40351402013 is a wasteful number, since it uses less digits than its factorization.

40351402013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9791983.

The product of its (nonzero) digits is 1440, while the sum is 23.

Adding to 40351402013 its reverse (31020415304), we get a palindrome (71371817317).

The spelling of 40351402013 in words is "forty billion, three hundred fifty-one million, four hundred two thousand, thirteen".