16428774 has 8 divisors (see below), whose sum is σ = 32857560. Its totient is φ = 5476256.

The previous prime is 16428757. The next prime is 16428779. The reversal of 16428774 is 47782461.

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

16428774 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16428779) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1369059 + ... + 1369070.

It is an arithmetic number, because the mean of its divisors is an integer number (4107195).

Almost surely, 2^16428774 is an apocalyptic number.

16428774 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

16428774 is a wasteful number, since it uses less digits than its factorization.

16428774 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2738134.

The product of its digits is 75264, while the sum is 39.

The square root of 16428774 is about 4053.2424057784. The cubic root of 16428774 is about 254.2153195166.

The spelling of 16428774 in words is "sixteen million, four hundred twenty-eight thousand, seven hundred seventy-four".