30133752 has 32 divisors (see below), whose sum is σ = 82183680. Its totient is φ = 9131360.

The previous prime is 30133739. The next prime is 30133757. The reversal of 30133752 is 25733103.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30133757) 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, 56808 + ... + 57335.

It is an arithmetic number, because the mean of its divisors is an integer number (2568240).

Almost surely, 2^30133752 is an apocalyptic number.

It is an amenable number.

30133752 is an abundant number, since it is smaller than the sum of its proper divisors (52049928).

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

30133752 is a wasteful number, since it uses less digits than its factorization.

30133752 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114163 (or 114159 counting only the distinct ones).

The product of its (nonzero) digits is 1890, while the sum is 24.

The square root of 30133752 is about 5489.4218274787. The cubic root of 30133752 is about 311.1843422093.

Adding to 30133752 its reverse (25733103), we get a palindrome (55866855).

The spelling of 30133752 in words is "thirty million, one hundred thirty-three thousand, seven hundred fifty-two".