22336731 has 6 divisors (see below), whose sum is σ = 32264180. Its totient is φ = 14891148.

The previous prime is 22336729. The next prime is 22336747. The reversal of 22336731 is 13763322.

It is not a de Polignac number, because 22336731 - 2¹ = 22336729 is a prime.

It is a super-3 number, since 3×22336731³ (a number of 23 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22336695 and 22336704.

It is not an unprimeable number, because it can be changed into a prime (22336031) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1240921 + ... + 1240938.

Almost surely, 2^22336731 is an apocalyptic number.

22336731 is a deficient number, since it is larger than the sum of its proper divisors (9927449).

22336731 is a wasteful number, since it uses less digits than its factorization.

22336731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2481865 (or 2481862 counting only the distinct ones).

The product of its digits is 4536, while the sum is 27.

The square root of 22336731 is about 4726.1750919745. The cubic root of 22336731 is about 281.6262969037.

The spelling of 22336731 in words is "twenty-two million, three hundred thirty-six thousand, seven hundred thirty-one".