30772224 has 220 divisors, whose sum is σ = 107000784. Its totient is φ = 8626176.

The previous prime is 30772213. The next prime is 30772241. The reversal of 30772224 is 42227703.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 580582 + ... + 580634.

Almost surely, 2^30772224 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30772224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (53500392).

30772224 is an abundant number, since it is smaller than the sum of its proper divisors (76228560).

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

30772224 is an equidigital number, since it uses as much as digits as its factorization.

30772224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92 (or 65 counting only the distinct ones).

The product of its (nonzero) digits is 4704, while the sum is 27.

The square root of 30772224 is about 5547.2717618664. The cubic root of 30772224 is about 313.3667848195.

Adding to 30772224 its reverse (42227703), we get a palindrome (72999927).

The spelling of 30772224 in words is "thirty million, seven hundred seventy-two thousand, two hundred twenty-four".