16340994 has 64 divisors (see below), whose sum is σ = 38707200. Its totient is φ = 5098896.

The previous prime is 16340983. The next prime is 16341019. The reversal of 16340994 is 49904361.

16340994 = 497² + 498² + ... + 555².

16340994 is a `hidden beast` number, since 163 + 409 + 94 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 73167 + ... + 73389.

It is an arithmetic number, because the mean of its divisors is an integer number (604800).

Almost surely, 2^16340994 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16340994, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19353600).

16340994 is an abundant number, since it is smaller than the sum of its proper divisors (22366206).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

16340994 is a wasteful number, since it uses less digits than its factorization.

16340994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 316 (or 310 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 36.

The square root of 16340994 is about 4042.3995349297. The cubic root of 16340994 is about 253.7617477797.

The spelling of 16340994 in words is "sixteen million, three hundred forty thousand, nine hundred ninety-four".