16347474 has 128 divisors (see below), whose sum is σ = 44755200. Its totient is φ = 4354560.

The previous prime is 16347473. The next prime is 16347481. The reversal of 16347474 is 47474361.

It is a happy number.

It is an alternating number because its digits alternate between odd and even.

It is not an unprimeable number, because it can be changed into a prime (16347473) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 223902 + ... + 223974.

It is an arithmetic number, because the mean of its divisors is an integer number (349650).

Almost surely, 2^16347474 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16347474, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22377600).

16347474 is an abundant number, since it is smaller than the sum of its proper divisors (28407726).

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

16347474 is a wasteful number, since it uses less digits than its factorization.

16347474 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137 (or 131 counting only the distinct ones).

The product of its digits is 56448, while the sum is 36.

The square root of 16347474 is about 4043.2009596358. The cubic root of 16347474 is about 253.7952863110.

The spelling of 16347474 in words is "sixteen million, three hundred forty-seven thousand, four hundred seventy-four".