16138430 has 32 divisors (see below), whose sum is σ = 36218880. Its totient is φ = 5029920.

The previous prime is 16138403. The next prime is 16138477. The reversal of 16138430 is 3483161.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 16138430.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9710 + ... + 11249.

It is an arithmetic number, because the mean of its divisors is an integer number (1131840).

Almost surely, 2^16138430 is an apocalyptic number.

16138430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

16138430 is an abundant number, since it is smaller than the sum of its proper divisors (20080450).

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

16138430 is a wasteful number, since it uses less digits than its factorization.

16138430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20984.

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 16138430 is about 4017.2664835681. The cubic root of 16138430 is about 252.7088361502.

The spelling of 16138430 in words is "sixteen million, one hundred thirty-eight thousand, four hundred thirty".