30867880 has 16 divisors (see below), whose sum is σ = 69452820. Its totient is φ = 12347136.

The previous prime is 30867877. The next prime is 30867887. The reversal of 30867880 is 8876803.

It can be written as a sum of positive squares in 2 ways, for example, as 26811684 + 4056196 = 5178^2 + 2014^2 .

It is a Harshad number since it is a multiple of its sum of digits (40), and also a Moran number because the ratio is a prime number: 771697 = 30867880 / (3 + 0 + 8 + 6 + 7 + 8 + 8 + 0).

It is not an unprimeable number, because it can be changed into a prime (30867887) 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, 385809 + ... + 385888.

Almost surely, 2^30867880 is an apocalyptic number.

It is an amenable number.

30867880 is an abundant number, since it is smaller than the sum of its proper divisors (38584940).

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

30867880 is a wasteful number, since it uses less digits than its factorization.

30867880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 771708 (or 771704 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 40.

The square root of 30867880 is about 5555.8869678927. The cubic root of 30867880 is about 313.6911510076.

The spelling of 30867880 in words is "thirty million, eight hundred sixty-seven thousand, eight hundred eighty".