30661330 has 32 divisors (see below), whose sum is σ = 63265536. Its totient is φ = 10480704.

The previous prime is 30661327. The next prime is 30661333. The reversal of 30661330 is 3316603.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (30661327) and next prime (30661333).

It is not an unprimeable number, because it can be changed into a prime (30661333) 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, 44952 + ... + 45628.

It is an arithmetic number, because the mean of its divisors is an integer number (1977048).

Almost surely, 2^30661330 is an apocalyptic number.

30661330 is an abundant number, since it is smaller than the sum of its proper divisors (32604206).

30661330 is a wasteful number, since it uses less digits than its factorization.

30661330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1338.

The product of its (nonzero) digits is 972, while the sum is 22.

The square root of 30661330 is about 5537.2673766037. The cubic root of 30661330 is about 312.9899046443.

Adding to 30661330 its reverse (3316603), we get a palindrome (33977933).

The spelling of 30661330 in words is "thirty million, six hundred sixty-one thousand, three hundred thirty".