38220102 has 24 divisors (see below), whose sum is σ = 84374784. Its totient is φ = 12499344.

The previous prime is 38220067. The next prime is 38220109. The reversal of 38220102 is 20102283.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38220109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 19078 + ... + 20985.

It is an arithmetic number, because the mean of its divisors is an integer number (3515616).

Almost surely, 2^38220102 is an apocalyptic number.

38220102 is an abundant number, since it is smaller than the sum of its proper divisors (46154682).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

38220102 is a wasteful number, since it uses less digits than its factorization.

38220102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40124 (or 40121 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 38220102 is about 6182.2408558710. The cubic root of 38220102 is about 336.8453945411.

Adding to 38220102 its reverse (20102283), we get a palindrome (58322385).

The spelling of 38220102 in words is "thirty-eight million, two hundred twenty thousand, one hundred two".