16290432 has 96 divisors (see below), whose sum is σ = 47736000. Its totient is φ = 5331456.

The previous prime is 16290427. The next prime is 16290433. The reversal of 16290432 is 23409261.

16290432 is a `hidden beast` number, since 1 + 629 + 0 + 4 + 32 = 666.

It is a tau number, because it is divible by the number of its divisors (96).

It is a junction number, because it is equal to n+sod(n) for n = 16290396 and 16290405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16290433) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 90919 + ... + 91097.

It is an arithmetic number, because the mean of its divisors is an integer number (497250).

Almost surely, 2^16290432 is an apocalyptic number.

16290432 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 16290432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23868000).

16290432 is an abundant number, since it is smaller than the sum of its proper divisors (31445568).

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

16290432 is a wasteful number, since it uses less digits than its factorization.

16290432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 278 (or 263 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The square root of 16290432 is about 4036.1407309458. The cubic root of 16290432 is about 253.4997490748.

Adding to 16290432 its reverse (23409261), we get a palindrome (39699693).

The spelling of 16290432 in words is "sixteen million, two hundred ninety thousand, four hundred thirty-two".