30143692 has 18 divisors (see below), whose sum is σ = 54081524. Its totient is φ = 14700960.

The previous prime is 30143653. The next prime is 30143723. The reversal of 30143692 is 29634103.

It is an alternating number because its digits alternate between odd and even.

It is a self number, because there is not a number n which added to its sum of digits gives 30143692.

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, 4483 + ... + 8965.

Almost surely, 2^30143692 is an apocalyptic number.

30143692 is the 4483-rd pentagonal number.

It is an amenable number.

30143692 is a deficient number, since it is larger than the sum of its proper divisors (23937832).

30143692 is a wasteful number, since it uses less digits than its factorization.

30143692 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4569 (or 4526 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 28.

The square root of 30143692 is about 5490.3271305087. The cubic root of 30143692 is about 311.2185544808.

Adding to 30143692 its reverse (29634103), we get a palindrome (59777795).

The spelling of 30143692 in words is "thirty million, one hundred forty-three thousand, six hundred ninety-two".