30133684 has 12 divisors (see below), whose sum is σ = 60267424. Its totient is φ = 12914424.

The previous prime is 30133679. The next prime is 30133687. The reversal of 30133684 is 48633103.

30133684 is an admirable number.

It is a super-2 number, since 2×30133684² = 1816077822823712, which contains 22 as substring.

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (28), and also a Moran number because the ratio is a prime number: 1076203 = 30133684 / (3 + 0 + 1 + 3 + 3 + 6 + 8 + 4).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30133687) 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, 538074 + ... + 538129.

Almost surely, 2^30133684 is an apocalyptic number.

It is an amenable number.

30133684 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.

30133684 is a wasteful number, since it uses less digits than its factorization.

30133684 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1076214 (or 1076212 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 28.

The square root of 30133684 is about 5489.4156337446. The cubic root of 30133684 is about 311.1841081357.

Adding to 30133684 its reverse (48633103), we get a palindrome (78766787).

The spelling of 30133684 in words is "thirty million, one hundred thirty-three thousand, six hundred eighty-four".