30661316 has 12 divisors (see below), whose sum is σ = 61322688. Its totient is φ = 13140552.

The previous prime is 30661313. The next prime is 30661327. The reversal of 30661316 is 61316603.

30661316 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (30661313) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 547496 + ... + 547551.

It is an arithmetic number, because the mean of its divisors is an integer number (5110224).

Almost surely, 2^30661316 is an apocalyptic number.

It is an amenable number.

30661316 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

30661316 is a wasteful number, since it uses less digits than its factorization.

30661316 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1095058 (or 1095056 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 26.

The square root of 30661316 is about 5537.2661124421. The cubic root of 30661316 is about 312.9898570071.

Adding to 30661316 its reverse (61316603), we get a palindrome (91977919).

The spelling of 30661316 in words is "thirty million, six hundred sixty-one thousand, three hundred sixteen".