22038623 has 8 divisors (see below), whose sum is σ = 23048928. Its totient is φ = 21032704.

The previous prime is 22038617. The next prime is 22038631. The reversal of 22038623 is 32683022.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 22038623 - 2¹⁸ = 21776479 is a prime.

It is a super-2 number, since 2×22038623² = 971401807472258, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22038592 and 22038601.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22035623) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13415 + ... + 14967.

It is an arithmetic number, because the mean of its divisors is an integer number (2881116).

Almost surely, 2^22038623 is an apocalyptic number.

22038623 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

22038623 is a deficient number, since it is larger than the sum of its proper divisors (1010305).

22038623 is a wasteful number, since it uses less digits than its factorization.

22038623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2193.

The product of its (nonzero) digits is 3456, while the sum is 26.

The square root of 22038623 is about 4694.5311800008. The cubic root of 22038623 is about 280.3678116942.

The spelling of 22038623 in words is "twenty-two million, thirty-eight thousand, six hundred twenty-three".