30194222 has 4 divisors (see below), whose sum is σ = 45291336. Its totient is φ = 15097110.

The previous prime is 30194221. The next prime is 30194231. The reversal of 30194222 is 22249103.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30194221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7548554 + ... + 7548557.

It is an arithmetic number, because the mean of its divisors is an integer number (11322834).

Almost surely, 2^30194222 is an apocalyptic number.

30194222 is a deficient number, since it is larger than the sum of its proper divisors (15097114).

30194222 is a wasteful number, since it uses less digits than its factorization.

30194222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15097113.

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 30194222 is about 5494.9269330902. The cubic root of 30194222 is about 311.3923564006.

The spelling of 30194222 in words is "thirty million, one hundred ninety-four thousand, two hundred twenty-two".