39222000 has 120 divisors (see below), whose sum is σ = 137052240. Its totient is φ = 10454400.

The previous prime is 39221993. The next prime is 39222011. The reversal of 39222000 is 22293.

It is a tau number, because it is divible by the number of its divisors (120).

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 16911 + ... + 19089.

It is an arithmetic number, because the mean of its divisors is an integer number (1142102).

Almost surely, 2^39222000 is an apocalyptic number.

39222000 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 39222000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (68526120).

39222000 is an abundant number, since it is smaller than the sum of its proper divisors (97830240).

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

39222000 is a wasteful number, since it uses less digits than its factorization.

39222000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2208 (or 2189 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 39222000 is about 6262.7470011170. The cubic root of 39222000 is about 339.7633878553.

Adding to 39222000 its reverse (22293), we get a palindrome (39244293).

The spelling of 39222000 in words is "thirty-nine million, two hundred twenty-two thousand".