11401405 has 8 divisors (see below), whose sum is σ = 13759200. Its totient is φ = 9069456.

The previous prime is 11401391. The next prime is 11401417. The reversal of 11401405 is 50410411.

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

It is a cyclic number.

It is not a de Polignac number, because 11401405 - 2¹¹ = 11399357 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5475 + ... + 7264.

It is an arithmetic number, because the mean of its divisors is an integer number (1719900).

Almost surely, 2^11401405 is an apocalyptic number.

It is an amenable number.

11401405 is a deficient number, since it is larger than the sum of its proper divisors (2357795).

11401405 is a wasteful number, since it uses less digits than its factorization.

11401405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12923.

The product of its (nonzero) digits is 80, while the sum is 16.

The square root of 11401405 is about 3376.5966593598. The cubic root of 11401405 is about 225.0709570442.

Adding to 11401405 its reverse (50410411), we get a palindrome (61811816).

The spelling of 11401405 in words is "eleven million, four hundred one thousand, four hundred five".