10543638 has 32 divisors (see below), whose sum is σ = 25519104. Its totient is φ = 2835072.

The previous prime is 10543633. The next prime is 10543699. The reversal of 10543638 is 83634501.

It is a super-2 number, since 2×10543638² = 222336604550088, which contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10543633) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6670 + ... + 8097.

It is an arithmetic number, because the mean of its divisors is an integer number (797472).

Almost surely, 2^10543638 is an apocalyptic number.

10543638 is an abundant number, since it is smaller than the sum of its proper divisors (14975466).

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

10543638 is a wasteful number, since it uses less digits than its factorization.

10543638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14796.

The product of its (nonzero) digits is 8640, while the sum is 30.

The square root of 10543638 is about 3247.0968571941. The cubic root of 10543638 is about 219.2788924071.

The spelling of 10543638 in words is "ten million, five hundred forty-three thousand, six hundred thirty-eight".