16698132 has 72 divisors (see below), whose sum is σ = 46519200. Its totient is φ = 5008320.

The previous prime is 16698107. The next prime is 16698139. The reversal of 16698132 is 23189661.

It is a super-2 number, since 2×16698132² = 557655224578848, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16698139) 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, 58863 + ... + 59145.

It is an arithmetic number, because the mean of its divisors is an integer number (646100).

Almost surely, 2^16698132 is an apocalyptic number.

16698132 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16698132, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23259600).

16698132 is an abundant number, since it is smaller than the sum of its proper divisors (29821068).

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

16698132 is a wasteful number, since it uses less digits than its factorization.

16698132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 453 (or 448 counting only the distinct ones).

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

The square root of 16698132 is about 4086.3347880466. The cubic root of 16698132 is about 255.5971242890.

It can be divided in two parts, 1669 and 8132, that added together give a square (9801 = 99²).

The spelling of 16698132 in words is "sixteen million, six hundred ninety-eight thousand, one hundred thirty-two".