30540330 has 48 divisors (see below), whose sum is σ = 84079944. Its totient is φ = 7664640.

The previous prime is 30540329. The next prime is 30540337. The reversal of 30540330 is 3304503.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 30437289 + 103041 = 5517^2 + 321^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (30540337) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8451 + ... + 11510.

Almost surely, 2^30540330 is an apocalyptic number.

30540330 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

30540330 is an abundant number, since it is smaller than the sum of its proper divisors (53539614).

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

30540330 is a wasteful number, since it uses less digits than its factorization.

30540330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19991 (or 19988 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 18.

The square root of 30540330 is about 5526.3306090027. The cubic root of 30540330 is about 312.5776404420.

Adding to 30540330 its reverse (3304503), we get a palindrome (33844833).

The spelling of 30540330 in words is "thirty million, five hundred forty thousand, three hundred thirty".