11400005 has 8 divisors (see below), whose sum is σ = 13801752. Its totient is φ = 9038848.

The previous prime is 11399989. The next prime is 11400017. The reversal of 11400005 is 50000411.

It can be written as a sum of positive squares in 4 ways, for example, as 103684 + 11296321 = 322^2 + 3361^2 .

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 11400005 - 2⁴ = 11399989 is a prime.

It is a super-2 number, since 2×11400005² = 259920228000050, which contains 22 as substring.

It is a Duffinian number.

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, 9524 + ... + 10653.

It is an arithmetic number, because the mean of its divisors is an integer number (1725219).

Almost surely, 2^11400005 is an apocalyptic number.

It is an amenable number.

11400005 is a deficient number, since it is larger than the sum of its proper divisors (2401747).

11400005 is a wasteful number, since it uses less digits than its factorization.

11400005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20295.

The product of its (nonzero) digits is 20, while the sum is 11.

The square root of 11400005 is about 3376.3893436628. The cubic root of 11400005 is about 225.0617443715.

Adding to 11400005 its reverse (50000411), we get a palindrome (61400416).

The spelling of 11400005 in words is "eleven million, four hundred thousand, five".