38222421 has 16 divisors (see below), whose sum is σ = 52276224. Its totient is φ = 24830064.

The previous prime is 38222351. The next prime is 38222441. The reversal of 38222421 is 12422283.

38222421 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 38222421 - 2¹⁰ = 38221397 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 38222391 and 38222400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38222441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 42846 + ... + 43728.

It is an arithmetic number, because the mean of its divisors is an integer number (3267264).

Almost surely, 2^38222421 is an apocalyptic number.

It is an amenable number.

38222421 is a deficient number, since it is larger than the sum of its proper divisors (14053803).

38222421 is a wasteful number, since it uses less digits than its factorization.

38222421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1240.

The product of its digits is 1536, while the sum is 24.

The square root of 38222421 is about 6182.4284063788. The cubic root of 38222421 is about 336.8522070877.

The spelling of 38222421 in words is "thirty-eight million, two hundred twenty-two thousand, four hundred twenty-one".