22038307 has 4 divisors (see below), whose sum is σ = 23334696. Its totient is φ = 20741920.

The previous prime is 22038287. The next prime is 22038319. The reversal of 22038307 is 70383022.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 70383022 = 2 ⋅35191511.

It is a cyclic number.

It is not a de Polignac number, because 22038307 - 2¹⁵ = 22005539 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22036307) 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, 648169 + ... + 648202.

It is an arithmetic number, because the mean of its divisors is an integer number (5833674).

Almost surely, 2^22038307 is an apocalyptic number.

22038307 is a deficient number, since it is larger than the sum of its proper divisors (1296389).

22038307 is a wasteful number, since it uses less digits than its factorization.

22038307 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1296388.

The product of its (nonzero) digits is 2016, while the sum is 25.

The square root of 22038307 is about 4694.4975236973. The cubic root of 22038307 is about 280.3664716732.

The spelling of 22038307 in words is "twenty-two million, thirty-eight thousand, three hundred seven".