30219822 has 12 divisors (see below), whose sum is σ = 65476320. Its totient is φ = 10073268.

The previous prime is 30219821. The next prime is 30219853. The reversal of 30219822 is 22891203.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30219821) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 839422 + ... + 839457.

It is an arithmetic number, because the mean of its divisors is an integer number (5456360).

Almost surely, 2^30219822 is an apocalyptic number.

30219822 is an abundant number, since it is smaller than the sum of its proper divisors (35256498).

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

30219822 is a wasteful number, since it uses less digits than its factorization.

30219822 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1678887 (or 1678884 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 30219822 is about 5497.2558608819. The cubic root of 30219822 is about 311.4803356226.

The spelling of 30219822 in words is "thirty million, two hundred nineteen thousand, eight hundred twenty-two".