30771040 has 24 divisors (see below), whose sum is σ = 72696960. Its totient is φ = 12308352.

The previous prime is 30771031. The next prime is 30771047. The reversal of 30771040 is 4017703.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30771047) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 96000 + ... + 96319.

It is an arithmetic number, because the mean of its divisors is an integer number (3029040).

Almost surely, 2^30771040 is an apocalyptic number.

It is an amenable number.

30771040 is an abundant number, since it is smaller than the sum of its proper divisors (41925920).

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

30771040 is a wasteful number, since it uses less digits than its factorization.

30771040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 192334 (or 192326 counting only the distinct ones).

The product of its (nonzero) digits is 588, while the sum is 22.

The square root of 30771040 is about 5547.1650417127. The cubic root of 30771040 is about 313.3627657076.

Adding to 30771040 its reverse (4017703), we get a palindrome (34788743).

The spelling of 30771040 in words is "thirty million, seven hundred seventy-one thousand, forty".