38223929 has 2 divisors, whose sum is σ = 38223930. Its totient is φ = 38223928.

The previous prime is 38223893. The next prime is 38223979. The reversal of 38223929 is 92932283.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 26988025 + 11235904 = 5195^2 + 3352^2 .

It is a cyclic number.

It is not a de Polignac number, because 38223929 - 2⁸ = 38223673 is a prime.

It is a super-2 number, since 2×38223929² = 2922137496394082, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 38223892 and 38223901.

It is not a weakly prime, because it can be changed into another prime (38223979) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19111964 + 19111965.

It is an arithmetic number, because the mean of its divisors is an integer number (19111965).

Almost surely, 2^38223929 is an apocalyptic number.

It is an amenable number.

38223929 is a deficient number, since it is larger than the sum of its proper divisors (1).

38223929 is an equidigital number, since it uses as much as digits as its factorization.

38223929 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 38223929 is about 6182.5503637253. The cubic root of 38223929 is about 336.8566370046.

The spelling of 38223929 in words is "thirty-eight million, two hundred twenty-three thousand, nine hundred twenty-nine".