16231698 has 64 divisors (see below), whose sum is σ = 43038720. Its totient is φ = 4433616.

The previous prime is 16231697. The next prime is 16231711. The reversal of 16231698 is 89613261.

It is not an unprimeable number, because it can be changed into a prime (16231697) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7761 + ... + 9627.

It is an arithmetic number, because the mean of its divisors is an integer number (672480).

Almost surely, 2^16231698 is an apocalyptic number.

16231698 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 16231698, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21519360).

16231698 is an abundant number, since it is smaller than the sum of its proper divisors (26807022).

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

16231698 is a wasteful number, since it uses less digits than its factorization.

16231698 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1908 (or 1902 counting only the distinct ones).

The product of its digits is 15552, while the sum is 36.

The square root of 16231698 is about 4028.8581508909. The cubic root of 16231698 is about 253.1947237282.

It can be divided in two parts, 1623 and 1698, that added together give a triangular number (3321 = T₈₁).

The spelling of 16231698 in words is "sixteen million, two hundred thirty-one thousand, six hundred ninety-eight".