10689438 has 32 divisors (see below), whose sum is σ = 23063040. Its totient is φ = 3291840.

The previous prime is 10689431. The next prime is 10689439. The reversal of 10689438 is 83498601.

It is a super-2 number, since 2×10689438² = 228528169511688, which contains 22 as substring.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 10689396 and 10689405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10689431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3531 + ... + 5817.

It is an arithmetic number, because the mean of its divisors is an integer number (720720).

Almost surely, 2^10689438 is an apocalyptic number.

10689438 is an abundant number, since it is smaller than the sum of its proper divisors (12373602).

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

10689438 is a wasteful number, since it uses less digits than its factorization.

10689438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2352.

The product of its (nonzero) digits is 41472, while the sum is 39.

The square root of 10689438 is about 3269.4705993479. The cubic root of 10689438 is about 220.2850162688.

The spelling of 10689438 in words is "ten million, six hundred eighty-nine thousand, four hundred thirty-eight".