30223260 has 96 divisors (see below), whose sum is σ = 95161920. Its totient is φ = 7962624.

The previous prime is 30223211. The next prime is 30223261. The reversal of 30223260 is 6232203.

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 (30223261) 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, 52092 + ... + 52668.

It is an arithmetic number, because the mean of its divisors is an integer number (991270).

Almost surely, 2^30223260 is an apocalyptic number.

30223260 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 30223260, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (47580960).

30223260 is an abundant number, since it is smaller than the sum of its proper divisors (64938660).

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

30223260 is a wasteful number, since it uses less digits than its factorization.

30223260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 692 (or 684 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

The square root of 30223260 is about 5497.5685534607. The cubic root of 30223260 is about 311.4921471723.

Adding to 30223260 its reverse (6232203), we get a palindrome (36455463).

The spelling of 30223260 in words is "thirty million, two hundred twenty-three thousand, two hundred sixty".