10400189 has 2 divisors, whose sum is σ = 10400190. Its totient is φ = 10400188.

The previous prime is 10400177. The next prime is 10400231. The reversal of 10400189 is 98100401.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10272025 + 128164 = 3205^2 + 358^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10400189 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10400129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5200094 + 5200095.

It is an arithmetic number, because the mean of its divisors is an integer number (5200095).

Almost surely, 2^10400189 is an apocalyptic number.

It is an amenable number.

10400189 is a deficient number, since it is larger than the sum of its proper divisors (1).

10400189 is an equidigital number, since it uses as much as digits as its factorization.

10400189 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288, while the sum is 23.

The square root of 10400189 is about 3224.9324023923. The cubic root of 10400189 is about 218.2798988687.

The spelling of 10400189 in words is "ten million, four hundred thousand, one hundred eighty-nine".