16731234 has 48 divisors (see below), whose sum is σ = 39416832. Its totient is φ = 5098464.

The previous prime is 16731233. The next prime is 16731241. The reversal of 16731234 is 43213761.

It is a super-3 number, since 3×16731234³ (a number of 23 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 16731198 and 16731207.

It is not an unprimeable number, because it can be changed into a prime (16731233) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 29437 + ... + 29999.

It is an arithmetic number, because the mean of its divisors is an integer number (821184).

Almost surely, 2^16731234 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16731234, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19708416).

16731234 is an abundant number, since it is smaller than the sum of its proper divisors (22685598).

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

16731234 is a wasteful number, since it uses less digits than its factorization.

16731234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 711 (or 708 counting only the distinct ones).

The product of its digits is 3024, while the sum is 27.

The square root of 16731234 is about 4090.3831116413. The cubic root of 16731234 is about 255.7659094629.

Adding to 16731234 its reverse (43213761), we get a palindrome (59944995).

The spelling of 16731234 in words is "sixteen million, seven hundred thirty-one thousand, two hundred thirty-four".