30042226 has 4 divisors (see below), whose sum is σ = 45063342. Its totient is φ = 15021112.

The previous prime is 30042223. The next prime is 30042239. The reversal of 30042226 is 62224003.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 62224003 = 1567 ⋅39709.

It can be written as a sum of positive squares in only one way, i.e., 29149201 + 893025 = 5399^2 + 945^2 .

It is not an unprimeable number, because it can be changed into a prime (30042223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7510555 + ... + 7510558.

Almost surely, 2^30042226 is an apocalyptic number.

30042226 is a deficient number, since it is larger than the sum of its proper divisors (15021116).

30042226 is a wasteful number, since it uses less digits than its factorization.

30042226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15021115.

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 30042226 is about 5481.0789083902. The cubic root of 30042226 is about 310.8689666942.

Adding to 30042226 its reverse (62224003), we get a palindrome (92266229).

The spelling of 30042226 in words is "thirty million, forty-two thousand, two hundred twenty-six".