16538274 has 12 divisors (see below), whose sum is σ = 35832966. Its totient is φ = 5512752.

The previous prime is 16538267. The next prime is 16538287. The reversal of 16538274 is 47283561.

It can be written as a sum of positive squares in only one way, i.e., 16281225 + 257049 = 4035^2 + 507^2 .

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 459379 + ... + 459414.

Almost surely, 2^16538274 is an apocalyptic number.

16538274 is an abundant number, since it is smaller than the sum of its proper divisors (19294692).

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

16538274 is a wasteful number, since it uses less digits than its factorization.

16538274 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 918801 (or 918798 counting only the distinct ones).

The product of its digits is 40320, while the sum is 36.

The square root of 16538274 is about 4066.7276771380. The cubic root of 16538274 is about 254.7788624936.

The spelling of 16538274 in words is "sixteen million, five hundred thirty-eight thousand, two hundred seventy-four".