30422688 has 24 divisors (see below), whose sum is σ = 79859808. Its totient is φ = 10140864.

The previous prime is 30422683. The next prime is 30422747. The reversal of 30422688 is 88622403.

It is a tau number, because it is divible by the number of its divisors (24).

It is not an unprimeable number, because it can be changed into a prime (30422681) 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, 158356 + ... + 158547.

It is an arithmetic number, because the mean of its divisors is an integer number (3327492).

Almost surely, 2^30422688 is an apocalyptic number.

It is an amenable number.

30422688 is an abundant number, since it is smaller than the sum of its proper divisors (49437120).

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

30422688 is a wasteful number, since it uses less digits than its factorization.

30422688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 316916 (or 316908 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 33.

The square root of 30422688 is about 5515.6765677476. The cubic root of 30422688 is about 312.1757720937.

The spelling of 30422688 in words is "thirty million, four hundred twenty-two thousand, six hundred eighty-eight".