30829072 has 20 divisors (see below), whose sum is σ = 59952636. Its totient is φ = 15357440.

The previous prime is 30829063. The next prime is 30829079. The reversal of 30829072 is 27092803.

It can be written as a sum of positive squares in 2 ways, for example, as 7750656 + 23078416 = 2784^2 + 4804^2 .

It is not an unprimeable number, because it can be changed into a prime (30829079) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1068 + ... + 7924.

Almost surely, 2^30829072 is an apocalyptic number.

It is an amenable number.

30829072 is a deficient number, since it is larger than the sum of its proper divisors (29123564).

30829072 is a wasteful number, since it uses less digits than its factorization.

30829072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7146 (or 7140 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 31.

The square root of 30829072 is about 5552.3933578233. The cubic root of 30829072 is about 313.5596353191.

The spelling of 30829072 in words is "thirty million, eight hundred twenty-nine thousand, seventy-two".