30713380 has 12 divisors (see below), whose sum is σ = 64498140. Its totient is φ = 12285344.

The previous prime is 30713377. The next prime is 30713411. The reversal of 30713380 is 8331703.

It can be written as a sum of positive squares in 2 ways, for example, as 23444964 + 7268416 = 4842^2 + 2696^2 .

It is a super-2 number, since 2×30713380² = 1886623422048800, which contains 22 as substring.

It is an unprimeable number.

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, 767815 + ... + 767854.

It is an arithmetic number, because the mean of its divisors is an integer number (5374845).

Almost surely, 2^30713380 is an apocalyptic number.

It is an amenable number.

30713380 is an abundant number, since it is smaller than the sum of its proper divisors (33784760).

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

30713380 is a wasteful number, since it uses less digits than its factorization.

30713380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1535678 (or 1535676 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 25.

The square root of 30713380 is about 5541.9653553591. The cubic root of 30713380 is about 313.1669127817.

The spelling of 30713380 in words is "thirty million, seven hundred thirteen thousand, three hundred eighty".