30775752 has 96 divisors (see below), whose sum is σ = 96033600. Its totient is φ = 8721792.

The previous prime is 30775747. The next prime is 30775753. The reversal of 30775752 is 25757703.

It is a super-2 number, since 2×30775752² = 1894293822331008, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (30775753) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 114274 + ... + 114542.

It is an arithmetic number, because the mean of its divisors is an integer number (1000350).

Almost surely, 2^30775752 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30775752, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (48016800).

30775752 is an abundant number, since it is smaller than the sum of its proper divisors (65257848).

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

30775752 is a wasteful number, since it uses less digits than its factorization.

30775752 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 515 (or 508 counting only the distinct ones).

The product of its (nonzero) digits is 51450, while the sum is 36.

The square root of 30775752 is about 5547.5897469081. The cubic root of 30775752 is about 313.3787600754.

The spelling of 30775752 in words is "thirty million, seven hundred seventy-five thousand, seven hundred fifty-two".