30730284 has 54 divisors (see below), whose sum is σ = 84130956. Its totient is φ = 9453600.

The previous prime is 30730283. The next prime is 30730309. The reversal of 30730284 is 48203703.

30730284 = 103² + 104² + ... + 453².

It is not an unprimeable number, because it can be changed into a prime (30730283) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 3559 + ... + 8609.

Almost surely, 2^30730284 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 30730284, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42065478).

30730284 is an abundant number, since it is smaller than the sum of its proper divisors (53400672).

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

30730284 is a wasteful number, since it uses less digits than its factorization.

30730284 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5087 (or 5069 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 27.

The square root of 30730284 is about 5543.4902363042. The cubic root of 30730284 is about 313.2243557441.

Adding to 30730284 its reverse (48203703), we get a palindrome (78933987).

The spelling of 30730284 in words is "thirty million, seven hundred thirty thousand, two hundred eighty-four".