30858222 has 32 divisors (see below), whose sum is σ = 64082592. Its totient is φ = 9897984.

The previous prime is 30858211. The next prime is 30858241. The reversal of 30858222 is 22285803.

It is a self number, because there is not a number n which added to its sum of digits gives 30858222.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20818 + ... + 22250.

It is an arithmetic number, because the mean of its divisors is an integer number (2002581).

Almost surely, 2^30858222 is an apocalyptic number.

30858222 is an abundant number, since it is smaller than the sum of its proper divisors (33224370).

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

30858222 is a wasteful number, since it uses less digits than its factorization.

30858222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1572.

The product of its (nonzero) digits is 7680, while the sum is 30.

The square root of 30858222 is about 5555.0177317449. The cubic root of 30858222 is about 313.6584315037.

The spelling of 30858222 in words is "thirty million, eight hundred fifty-eight thousand, two hundred twenty-two".