30225744 has 160 divisors (see below), whose sum is σ = 93486080. Its totient is φ = 9331200.

The previous prime is 30225721. The next prime is 30225757. The reversal of 30225744 is 44752203.

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 31 ways as a sum of consecutive naturals, for example, 495474 + ... + 495534.

It is an arithmetic number, because the mean of its divisors is an integer number (584288).

Almost surely, 2^30225744 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 30225744, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (46743040).

30225744 is an abundant number, since it is smaller than the sum of its proper divisors (63260336).

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

30225744 is a wasteful number, since it uses less digits than its factorization.

30225744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146 (or 134 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 27.

The square root of 30225744 is about 5497.7944668749. The cubic root of 30225744 is about 311.5006806142.

Adding to 30225744 its reverse (44752203), we get a palindrome (74977947).

The spelling of 30225744 in words is "thirty million, two hundred twenty-five thousand, seven hundred forty-four".