16000038 has 32 divisors (see below), whose sum is σ = 35773920. Its totient is φ = 5300640.

The previous prime is 15999989. The next prime is 16000057. The reversal of 16000038 is 83000061.

It is a Harshad number since it is a multiple of its sum of digits (18).

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, 8956 + ... + 10592.

It is an arithmetic number, because the mean of its divisors is an integer number (1117935).

Almost surely, 2^16000038 is an apocalyptic number.

16000038 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

16000038 is an abundant number, since it is smaller than the sum of its proper divisors (19773882).

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

16000038 is a wasteful number, since it uses less digits than its factorization.

16000038 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1829 (or 1823 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 16000038 is about 4000.0047499972. The cubic root of 16000038 is about 251.9844094663.

Adding to 16000038 its reverse (83000061), we get a palindrome (99000099).

The spelling of 16000038 in words is "sixteen million, thirty-eight", and thus it is an aban number and an uban number.