13880001 has 16 divisors (see below), whose sum is σ = 19086080. Its totient is φ = 8968320.

The previous prime is 13879997. The next prime is 13880023. The reversal of 13880001 is 10008831.

It is a happy number.

13880001 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13880001 - 2² = 13879997 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13880001.

It is not an unprimeable number, because it can be changed into a prime (13880101) 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, 12840 + ... + 13878.

It is an arithmetic number, because the mean of its divisors is an integer number (1192880).

Almost surely, 2^13880001 is an apocalyptic number.

It is an amenable number.

13880001 is a deficient number, since it is larger than the sum of its proper divisors (5206079).

13880001 is a wasteful number, since it uses less digits than its factorization.

13880001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1176.

The product of its (nonzero) digits is 192, while the sum is 21.

The square root of 13880001 is about 3725.5873362465. The cubic root of 13880001 is about 240.3236432277.

Adding to 13880001 its reverse (10008831), we get a palindrome (23888832).

The spelling of 13880001 in words is "thirteen million, eight hundred eighty thousand, one".