22328751 has 4 divisors (see below), whose sum is σ = 29771672. Its totient is φ = 14885832.

The previous prime is 22328731. The next prime is 22328771. The reversal of 22328751 is 15782322.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (22328731) and next prime (22328771).

It is not a de Polignac number, because 22328751 - 2¹⁰ = 22327727 is a prime.

It is a super-3 number, since 3×22328751³ (a number of 23 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22328731) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3721456 + ... + 3721461.

It is an arithmetic number, because the mean of its divisors is an integer number (7442918).

Almost surely, 2^22328751 is an apocalyptic number.

22328751 is a deficient number, since it is larger than the sum of its proper divisors (7442921).

22328751 is an equidigital number, since it uses as much as digits as its factorization.

22328751 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7442920.

The product of its digits is 6720, while the sum is 30.

The square root of 22328751 is about 4725.3307820723. The cubic root of 22328751 is about 281.5927550583.

The spelling of 22328751 in words is "twenty-two million, three hundred twenty-eight thousand, seven hundred fifty-one".