30885530 has 16 divisors (see below), whose sum is σ = 59870664. Its totient is φ = 11403840.

The previous prime is 30885529. The next prime is 30885539. The reversal of 30885530 is 3558803.

It can be written as a sum of positive squares in 4 ways, for example, as 8427409 + 22458121 = 2903^2 + 4739^2 .

It is not an unprimeable number, because it can be changed into a prime (30885539) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 118661 + ... + 118920.

Almost surely, 2^30885530 is an apocalyptic number.

30885530 is a deficient number, since it is larger than the sum of its proper divisors (28985134).

30885530 is a wasteful number, since it uses less digits than its factorization.

30885530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 237601.

The product of its (nonzero) digits is 14400, while the sum is 32.

The square root of 30885530 is about 5557.4751461433. The cubic root of 30885530 is about 313.7509282894.

The spelling of 30885530 in words is "thirty million, eight hundred eighty-five thousand, five hundred thirty".