16428264 has 64 divisors (see below), whose sum is σ = 43130880. Its totient is φ = 5208000.

The previous prime is 16428229. The next prime is 16428277. The reversal of 16428264 is 46282461.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 52669 + ... + 52979.

It is an arithmetic number, because the mean of its divisors is an integer number (673920).

Almost surely, 2^16428264 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16428264, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21565440).

16428264 is an abundant number, since it is smaller than the sum of its proper divisors (26702616).

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

16428264 is a wasteful number, since it uses less digits than its factorization.

16428264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 422 (or 418 counting only the distinct ones).

The product of its digits is 18432, while the sum is 33.

The square root of 16428264 is about 4053.1794926946. The cubic root of 16428264 is about 254.2126889459.

The spelling of 16428264 in words is "sixteen million, four hundred twenty-eight thousand, two hundred sixty-four".