16138830 has 32 divisors (see below), whose sum is σ = 39680928. Its totient is φ = 4198400.

The previous prime is 16138823. The next prime is 16138841. The reversal of 16138830 is 3883161.

16138830 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

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, 5331 + ... + 7790.

It is an arithmetic number, because the mean of its divisors is an integer number (1240029).

Almost surely, 2^16138830 is an apocalyptic number.

16138830 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

16138830 is an abundant number, since it is smaller than the sum of its proper divisors (23542098).

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

16138830 is a wasteful number, since it uses less digits than its factorization.

16138830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13172.

The product of its (nonzero) digits is 3456, while the sum is 30.

The square root of 16138830 is about 4017.3162683563. The cubic root of 16138830 is about 252.7109239761.

The spelling of 16138830 in words is "sixteen million, one hundred thirty-eight thousand, eight hundred thirty".