30735224 has 32 divisors (see below), whose sum is σ = 63126000. Its totient is φ = 13942272.

The previous prime is 30735223. The next prime is 30735233. The reversal of 30735224 is 42253703.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a junction number, because it is equal to n+sod(n) for n = 30735193 and 30735202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30735223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3632 + ... + 8640.

Almost surely, 2^30735224 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 30735224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31563000).

30735224 is an abundant number, since it is smaller than the sum of its proper divisors (32390776).

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

30735224 is a wasteful number, since it uses less digits than its factorization.

30735224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5087 (or 5083 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 26.

The square root of 30735224 is about 5543.9357860639. The cubic root of 30735224 is about 313.2411388129.

Adding to 30735224 its reverse (42253703), we get a palindrome (72988927).

The spelling of 30735224 in words is "thirty million, seven hundred thirty-five thousand, two hundred twenty-four".