16906432 has 56 divisors (see below), whose sum is σ = 36484560. Its totient is φ = 7741440.

The previous prime is 16906427. The next prime is 16906451. The reversal of 16906432 is 23460961.

It is a junction number, because it is equal to n+sod(n) for n = 16906394 and 16906403.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44419 + ... + 44797.

It is an arithmetic number, because the mean of its divisors is an integer number (651510).

Almost surely, 2^16906432 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16906432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18242280).

16906432 is an abundant number, since it is smaller than the sum of its proper divisors (19578128).

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

16906432 is a wasteful number, since it uses less digits than its factorization.

16906432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 449 (or 439 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 31.

The square root of 16906432 is about 4111.7431826416. The cubic root of 16906432 is about 256.6555464532.

The spelling of 16906432 in words is "sixteen million, nine hundred six thousand, four hundred thirty-two".