38221423 has 16 divisors (see below), whose sum is σ = 42888960. Its totient is φ = 33872256.

The previous prime is 38221411. The next prime is 38221487. The reversal of 38221423 is 32412283.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-38221423 is a prime.

It is a super-2 number, since 2×38221423² = 2921754352289858, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38221523) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25468 + ... + 26926.

It is an arithmetic number, because the mean of its divisors is an integer number (2680560).

Almost surely, 2^38221423 is an apocalyptic number.

38221423 is a deficient number, since it is larger than the sum of its proper divisors (4667537).

38221423 is a wasteful number, since it uses less digits than its factorization.

38221423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1566.

The product of its digits is 2304, while the sum is 25.

The square root of 38221423 is about 6182.3476932311. The cubic root of 38221423 is about 336.8492752881.

The spelling of 38221423 in words is "thirty-eight million, two hundred twenty-one thousand, four hundred twenty-three".