40880013 has 8 divisors (see below), whose sum is σ = 55535328. Its totient is φ = 26739024.

The previous prime is 40880009. The next prime is 40880023. The reversal of 40880013 is 31008804.

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

It is not a de Polignac number, because 40880013 - 2² = 40880009 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40880023) 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, 128395 + ... + 128712.

It is an arithmetic number, because the mean of its divisors is an integer number (6941916).

Almost surely, 2^40880013 is an apocalyptic number.

It is an amenable number.

40880013 is a deficient number, since it is larger than the sum of its proper divisors (14655315).

40880013 is a wasteful number, since it uses less digits than its factorization.

40880013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 257163.

The product of its (nonzero) digits is 768, while the sum is 24.

The square root of 40880013 is about 6393.7479618765. The cubic root of 40880013 is about 344.4850203750.

Adding to 40880013 its reverse (31008804), we get a palindrome (71888817).

The spelling of 40880013 in words is "forty million, eight hundred eighty thousand, thirteen".