40402401013 has 16 divisors (see below), whose sum is σ = 45528618240. Its totient is φ = 35573560704.

The previous prime is 40402401007. The next prime is 40402401019. The reversal of 40402401013 is 31010420404.

It is an interprime number because it is at equal distance from previous prime (40402401007) and next prime (40402401019).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40402401013 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40402401019) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 80856 + ... + 295537.

It is an arithmetic number, because the mean of its divisors is an integer number (2845538640).

Almost surely, 2^40402401013 is an apocalyptic number.

It is an amenable number.

40402401013 is a deficient number, since it is larger than the sum of its proper divisors (5126217227).

40402401013 is a wasteful number, since it uses less digits than its factorization.

40402401013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 376788.

The product of its (nonzero) digits is 384, while the sum is 19.

Adding to 40402401013 its reverse (31010420404), we get a palindrome (71412821417).

The spelling of 40402401013 in words is "forty billion, four hundred two million, four hundred one thousand, thirteen".