30245730 has 32 divisors (see below), whose sum is σ = 72918144. Its totient is φ = 8029056.

The previous prime is 30245717. The next prime is 30245731. The reversal of 30245730 is 3754203.

It is a self number, because there is not a number n which added to its sum of digits gives 30245730.

It is not an unprimeable number, because it can be changed into a prime (30245731) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4827 + ... + 9153.

It is an arithmetic number, because the mean of its divisors is an integer number (2278692).

Almost surely, 2^30245730 is an apocalyptic number.

30245730 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

30245730 is an abundant number, since it is smaller than the sum of its proper divisors (42672414).

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

30245730 is a wasteful number, since it uses less digits than its factorization.

30245730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4570.

The product of its (nonzero) digits is 2520, while the sum is 24.

The square root of 30245730 is about 5499.6118044822. The cubic root of 30245730 is about 311.5693227725.

Adding to 30245730 its reverse (3754203), we get a palindrome (33999933).

The spelling of 30245730 in words is "thirty million, two hundred forty-five thousand, seven hundred thirty".