16428115 has 8 divisors (see below), whose sum is σ = 21505968. Its totient is φ = 11947680.

The previous prime is 16428091. The next prime is 16428119. The reversal of 16428115 is 51182461.

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

It is not a de Polignac number, because 16428115 - 2⁷ = 16427987 is a prime.

It is not an unprimeable number, because it can be changed into a prime (16428119) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 149292 + ... + 149401.

It is an arithmetic number, because the mean of its divisors is an integer number (2688246).

Almost surely, 2^16428115 is an apocalyptic number.

16428115 is a deficient number, since it is larger than the sum of its proper divisors (5077853).

16428115 is a wasteful number, since it uses less digits than its factorization.

16428115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 298709.

The product of its digits is 1920, while the sum is 28.

The square root of 16428115 is about 4053.1611120211. The cubic root of 16428115 is about 254.2119203963.

The spelling of 16428115 in words is "sixteen million, four hundred twenty-eight thousand, one hundred fifteen".