16243074 has 48 divisors (see below), whose sum is σ = 37435320. Its totient is φ = 5086368.

The previous prime is 16243067. The next prime is 16243079. The reversal of 16243074 is 47034261.

16243074 is a `hidden beast` number, since 1 + 624 + 30 + 7 + 4 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 12215025 + 4028049 = 3495^2 + 2007^2 .

It is not an unprimeable number, because it can be changed into a prime (16243079) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 438984 + ... + 439020.

Almost surely, 2^16243074 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16243074, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18717660).

16243074 is an abundant number, since it is smaller than the sum of its proper divisors (21192246).

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

16243074 is an equidigital number, since it uses as much as digits as its factorization.

16243074 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132 (or 71 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 27.

The square root of 16243074 is about 4030.2697180214. The cubic root of 16243074 is about 253.2538604976.

The spelling of 16243074 in words is "sixteen million, two hundred forty-three thousand, seventy-four".