38222939 has 2 divisors, whose sum is σ = 38222940. Its totient is φ = 38222938.

The previous prime is 38222903. The next prime is 38222981. The reversal of 38222939 is 93922283.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-38222939 is a prime.

It is not a weakly prime, because it can be changed into another prime (38272939) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19111469 + 19111470.

It is an arithmetic number, because the mean of its divisors is an integer number (19111470).

Almost surely, 2^38222939 is an apocalyptic number.

38222939 is a deficient number, since it is larger than the sum of its proper divisors (1).

38222939 is an equidigital number, since it uses as much as digits as its factorization.

38222939 is an evil number, because the sum of its binary digits is even.

The product of its digits is 46656, while the sum is 38.

The square root of 38222939 is about 6182.4702991604. The cubic root of 38222939 is about 336.8537287831.

The spelling of 38222939 in words is "thirty-eight million, two hundred twenty-two thousand, nine hundred thirty-nine".