16380244 has 12 divisors (see below), whose sum is σ = 29654100. Its totient is φ = 7907648.

The previous prime is 16380191. The next prime is 16380253. The reversal of 16380244 is 44208361.

It can be written as a sum of positive squares in 2 ways, for example, as 5817744 + 10562500 = 2412^2 + 3250^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 70489 + ... + 70720.

It is an arithmetic number, because the mean of its divisors is an integer number (2471175).

Almost surely, 2^16380244 is an apocalyptic number.

It is an amenable number.

16380244 is a deficient number, since it is larger than the sum of its proper divisors (13273856).

16380244 is a wasteful number, since it uses less digits than its factorization.

16380244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141242 (or 141240 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 28.

The square root of 16380244 is about 4047.2514129962. The cubic root of 16380244 is about 253.9647583734.

The spelling of 16380244 in words is "sixteen million, three hundred eighty thousand, two hundred forty-four".