938224309 has 4 divisors (see below), whose sum is σ = 1023517440. Its totient is φ = 852931180.

The previous prime is 938224297. The next prime is 938224319. The reversal of 938224309 is 903422839.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 903422839 = 11 ⋅82129349.

It is a cyclic number.

It is not a de Polignac number, because 938224309 - 2⁵ = 938224277 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (938224319) 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, 42646549 + ... + 42646570.

It is an arithmetic number, because the mean of its divisors is an integer number (255879360).

Almost surely, 2^938224309 is an apocalyptic number.

It is an amenable number.

938224309 is a deficient number, since it is larger than the sum of its proper divisors (85293131).

938224309 is a wasteful number, since it uses less digits than its factorization.

938224309 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85293130.

The product of its (nonzero) digits is 93312, while the sum is 40.

The square root of 938224309 is about 30630.4474175615. The cubic root of 938224309 is about 978.9688964192.

The spelling of 938224309 in words is "nine hundred thirty-eight million, two hundred twenty-four thousand, three hundred nine".