16774272 has 48 divisors (see below), whose sum is σ = 48273030. Its totient is φ = 5591040.

The previous prime is 16774249. The next prime is 16774273. The reversal of 16774272 is 27247761.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 11128896 + 5645376 = 3336^2 + 2376^2 .

It is a tau number, because it is divible by the number of its divisors (48).

It is a super-2 number, since 2×16774272² = 562752402259968, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nialpdrome in base 8.

It is a zygodrome in base 8.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16774273) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6129 + ... + 8432.

Almost surely, 2^16774272 is an apocalyptic number.

16774272 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

16774272 is an abundant number, since it is smaller than the sum of its proper divisors (31498758).

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

16774272 is a wasteful number, since it uses less digits than its factorization.

16774272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14581 (or 14566 counting only the distinct ones).

The product of its digits is 32928, while the sum is 36.

The square root of 16774272 is about 4095.6406092332. The cubic root of 16774272 is about 255.9850251657.

The spelling of 16774272 in words is "sixteen million, seven hundred seventy-four thousand, two hundred seventy-two".