30042231 has 16 divisors (see below), whose sum is σ = 41779200. Its totient is φ = 19178208.

The previous prime is 30042223. The next prime is 30042239. The reversal of 30042231 is 13224003.

It is an interprime number because it is at equal distance from previous prime (30042223) and next prime (30042239).

It is not a de Polignac number, because 30042231 - 2³ = 30042223 is a prime.

It is a super-2 number, since 2×30042231² = 1805071286914722, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 30042231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30042239) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9690 + ... + 12408.

It is an arithmetic number, because the mean of its divisors is an integer number (2611200).

Almost surely, 2^30042231 is an apocalyptic number.

30042231 is a deficient number, since it is larger than the sum of its proper divisors (11736969).

30042231 is a wasteful number, since it uses less digits than its factorization.

30042231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2878.

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 30042231 is about 5481.0793645048. The cubic root of 30042231 is about 310.8689839404.

Adding to 30042231 its reverse (13224003), we get a palindrome (43266234).

The spelling of 30042231 in words is "thirty million, forty-two thousand, two hundred thirty-one".