8880040399 has 4 divisors (see below), whose sum is σ = 9266129136. Its totient is φ = 8493951664.

The previous prime is 8880040373. The next prime is 8880040409. The reversal of 8880040399 is 9930400888.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 8880040399 - 2¹³ = 8880032207 is a prime.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8880040369) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 193044334 + ... + 193044379.

It is an arithmetic number, because the mean of its divisors is an integer number (2316532284).

Almost surely, 2^8880040399 is an apocalyptic number.

8880040399 is a deficient number, since it is larger than the sum of its proper divisors (386088737).

8880040399 is a wasteful number, since it uses less digits than its factorization.

8880040399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 386088736.

The product of its (nonzero) digits is 497664, while the sum is 49.

The square root of 8880040399 is about 94233.9662701300. The cubic root of 8880040399 is about 2070.8007512131.

The spelling of 8880040399 in words is "eight billion, eight hundred eighty million, forty thousand, three hundred ninety-nine".