30022272 has 256 divisors, whose sum is σ = 108691200. Its totient is φ = 7962624.

The previous prime is 30022271. The next prime is 30022277. The reversal of 30022272 is 27222003.

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 (30022271) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 411228 + ... + 411300.

It is an arithmetic number, because the mean of its divisors is an integer number (424575).

Almost surely, 2^30022272 is an apocalyptic number.

30022272 is a gapful number since it is divisible by the number (32) 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 30022272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (54345600).

30022272 is an abundant number, since it is smaller than the sum of its proper divisors (78668928).

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

30022272 is a wasteful number, since it uses less digits than its factorization.

30022272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120 (or 102 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 18.

The square root of 30022272 is about 5479.2583439732. The cubic root of 30022272 is about 310.8001252217.

Adding to 30022272 its reverse (27222003), we get a palindrome (57244275).

The spelling of 30022272 in words is "thirty million, twenty-two thousand, two hundred seventy-two".