16428734 has 8 divisors (see below), whose sum is σ = 28163568. Its totient is φ = 7040880.

The previous prime is 16428719. The next prime is 16428743. The reversal of 16428734 is 43782461.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 16428694 and 16428703.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 586727 + ... + 586754.

It is an arithmetic number, because the mean of its divisors is an integer number (3520446).

Almost surely, 2^16428734 is an apocalyptic number.

16428734 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

16428734 is a deficient number, since it is larger than the sum of its proper divisors (11734834).

16428734 is a wasteful number, since it uses less digits than its factorization.

16428734 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1173490.

The product of its digits is 32256, while the sum is 35.

The square root of 16428734 is about 4053.2374714541. The cubic root of 16428734 is about 254.2151131993.

The spelling of 16428734 in words is "sixteen million, four hundred twenty-eight thousand, seven hundred thirty-four".