38222639 has 8 divisors (see below), whose sum is σ = 47043360. Its totient is φ = 30242016.

The previous prime is 38222627. The next prime is 38222641. The reversal of 38222639 is 93622283.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 38222639 - 2²⁰ = 37174063 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 38222599 and 38222608.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38222669) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 209924 + ... + 210105.

It is an arithmetic number, because the mean of its divisors is an integer number (5880420).

Almost surely, 2^38222639 is an apocalyptic number.

38222639 is a deficient number, since it is larger than the sum of its proper divisors (8820721).

38222639 is a wasteful number, since it uses less digits than its factorization.

38222639 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 420049.

The product of its digits is 31104, while the sum is 35.

The square root of 38222639 is about 6182.4460369663. The cubic root of 38222639 is about 336.8528474940.

The spelling of 38222639 in words is "thirty-eight million, two hundred twenty-two thousand, six hundred thirty-nine".