16428570 has 16 divisors (see below), whose sum is σ = 39428640. Its totient is φ = 4380944.

The previous prime is 16428563. The next prime is 16428583. The reversal of 16428570 is 7582461.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 273780 + ... + 273839.

It is an arithmetic number, because the mean of its divisors is an integer number (2464290).

Almost surely, 2^16428570 is an apocalyptic number.

16428570 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

16428570 is an abundant number, since it is smaller than the sum of its proper divisors (23000070).

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

16428570 is a wasteful number, since it uses less digits than its factorization.

16428570 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 547629.

The product of its (nonzero) digits is 13440, while the sum is 33.

The square root of 16428570 is about 4053.2172406620. The cubic root of 16428570 is about 254.2142672948.

The spelling of 16428570 in words is "sixteen million, four hundred twenty-eight thousand, five hundred seventy".