30133020 has 24 divisors (see below), whose sum is σ = 84372624. Its totient is φ = 8035456.

The previous prime is 30133003. The next prime is 30133021. The reversal of 30133020 is 2033103.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 30132987 and 30133005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30133021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 251049 + ... + 251168.

It is an arithmetic number, because the mean of its divisors is an integer number (3515526).

Almost surely, 2^30133020 is an apocalyptic number.

30133020 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

30133020 is an abundant number, since it is smaller than the sum of its proper divisors (54239604).

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

30133020 is a wasteful number, since it uses less digits than its factorization.

30133020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 502229 (or 502227 counting only the distinct ones).

The product of its (nonzero) digits is 54, while the sum is 12.

The square root of 30133020 is about 5489.3551533855. The cubic root of 30133020 is about 311.1818224569.

Adding to 30133020 its reverse (2033103), we get a palindrome (32166123).

The spelling of 30133020 in words is "thirty million, one hundred thirty-three thousand, twenty".