16428630 has 32 divisors (see below), whose sum is σ = 41749344. Its totient is φ = 4123136.

The previous prime is 16428611. The next prime is 16428653. The reversal of 16428630 is 3682461.

It is a Harshad number since it is a multiple of its sum of digits (30).

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, 15597 + ... + 16616.

It is an arithmetic number, because the mean of its divisors is an integer number (1304667).

Almost surely, 2^16428630 is an apocalyptic number.

16428630 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

16428630 is an abundant number, since it is smaller than the sum of its proper divisors (25320714).

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

16428630 is a wasteful number, since it uses less digits than its factorization.

16428630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32240.

The product of its (nonzero) digits is 6912, while the sum is 30.

The square root of 16428630 is about 4053.2246421831. The cubic root of 16428630 is about 254.2145767727.

The spelling of 16428630 in words is "sixteen million, four hundred twenty-eight thousand, six hundred thirty".