30222000 has 240 divisors, whose sum is σ = 111653568. Its totient is φ = 7603200.

The previous prime is 30221969. The next prime is 30222011. The reversal of 30222000 is 22203.

It is a tau number, because it is divible by the number of its divisors (240).

It is a Harshad number since it is a multiple of its sum of digits (9).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 413964 + ... + 414036.

Almost surely, 2^30222000 is an apocalyptic number.

30222000 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 30222000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (55826784).

30222000 is an abundant number, since it is smaller than the sum of its proper divisors (81431568).

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

30222000 is a wasteful number, since it uses less digits than its factorization.

30222000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125 (or 106 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 9.

The square root of 30222000 is about 5497.4539561510. The cubic root of 30222000 is about 311.4878184361.

Adding to 30222000 its reverse (22203), we get a palindrome (30244203).

The spelling of 30222000 in words is "thirty million, two hundred twenty-two thousand".