16523474 has 16 divisors (see below), whose sum is σ = 27367200. Its totient is φ = 7419360.

The previous prime is 16523471. The next prime is 16523489. The reversal of 16523474 is 47432561.

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

It is a self number, because there is not a number n which added to its sum of digits gives 16523474.

It is not an unprimeable number, because it can be changed into a prime (16523471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2699 + ... + 6350.

It is an arithmetic number, because the mean of its divisors is an integer number (1710450).

Almost surely, 2^16523474 is an apocalyptic number.

16523474 is a deficient number, since it is larger than the sum of its proper divisors (10843726).

16523474 is a wasteful number, since it uses less digits than its factorization.

16523474 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9145.

The product of its digits is 20160, while the sum is 32.

The square root of 16523474 is about 4064.9076250267. The cubic root of 16523474 is about 254.7028397977.

The spelling of 16523474 in words is "sixteen million, five hundred twenty-three thousand, four hundred seventy-four".