30770680 has 64 divisors (see below), whose sum is σ = 75349440. Its totient is φ = 11261952.

The previous prime is 30770669. The next prime is 30770681. The reversal of 30770680 is 8607703.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30770681) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24549 + ... + 25771.

It is an arithmetic number, because the mean of its divisors is an integer number (1177335).

Almost surely, 2^30770680 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 30770680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37674720).

30770680 is an abundant number, since it is smaller than the sum of its proper divisors (44578760).

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

30770680 is a wasteful number, since it uses less digits than its factorization.

30770680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1288 (or 1284 counting only the distinct ones).

The product of its (nonzero) digits is 7056, while the sum is 31.

The square root of 30770680 is about 5547.1325926103. The cubic root of 30770680 is about 313.3615436600.

The spelling of 30770680 in words is "thirty million, seven hundred seventy thousand, six hundred eighty".