16400941 has 4 divisors (see below), whose sum is σ = 16417852. Its totient is φ = 16384032.

The previous prime is 16400939. The next prime is 16400959. The reversal of 16400941 is 14900461.

16400941 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in 2 ways, for example, as 16232841 + 168100 = 4029^2 + 410^2 .

It is a cyclic number.

It is not a de Polignac number, because 16400941 - 2¹ = 16400939 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16400141) 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, 6906 + ... + 8971.

It is an arithmetic number, because the mean of its divisors is an integer number (4104463).

Almost surely, 2^16400941 is an apocalyptic number.

It is an amenable number.

16400941 is a deficient number, since it is larger than the sum of its proper divisors (16911).

16400941 is a wasteful number, since it uses less digits than its factorization.

16400941 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16910.

The product of its (nonzero) digits is 864, while the sum is 25.

The square root of 16400941 is about 4049.8075262906. The cubic root of 16400941 is about 254.0716777477.

The spelling of 16400941 in words is "sixteen million, four hundred thousand, nine hundred forty-one".