30143682 has 12 divisors (see below), whose sum is σ = 65311350. Its totient is φ = 10047888.

The previous prime is 30143653. The next prime is 30143723. The reversal of 30143682 is 28634103.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 23126481 + 7017201 = 4809^2 + 2649^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 837307 + ... + 837342.

Almost surely, 2^30143682 is an apocalyptic number.

30143682 is an abundant number, since it is smaller than the sum of its proper divisors (35167668).

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

30143682 is a wasteful number, since it uses less digits than its factorization.

30143682 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1674657 (or 1674654 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 30143682 is about 5490.3262198161. The cubic root of 30143682 is about 311.2185200658.

Adding to 30143682 its reverse (28634103), we get a palindrome (58777785).

The spelling of 30143682 in words is "thirty million, one hundred forty-three thousand, six hundred eighty-two".