38220255 has 48 divisors (see below), whose sum is σ = 69713280. Its totient is φ = 20085408.

The previous prime is 38220253. The next prime is 38220263. The reversal of 38220255 is 55202283.

It is not a de Polignac number, because 38220255 - 2¹ = 38220253 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38220251) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 100656 + ... + 101034.

It is an arithmetic number, because the mean of its divisors is an integer number (1452360).

Almost surely, 2^38220255 is an apocalyptic number.

38220255 is a deficient number, since it is larger than the sum of its proper divisors (31493025).

38220255 is an equidigital number, since it uses as much as digits as its factorization.

38220255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 482 (or 470 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

The square root of 38220255 is about 6182.2532300125. The cubic root of 38220255 is about 336.8458440190.

The spelling of 38220255 in words is "thirty-eight million, two hundred twenty thousand, two hundred fifty-five".