30214431 has 32 divisors (see below), whose sum is σ = 49056000. Its totient is φ = 18265824.

The previous prime is 30214397. The next prime is 30214439. The reversal of 30214431 is 13441203.

It is a de Polignac number, because none of the positive numbers 2^k-30214431 is a prime.

It is a super-2 number, since 2×30214431² = 1825823681307522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30214439) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 19980 + ... + 21438.

It is an arithmetic number, because the mean of its divisors is an integer number (1533000).

Almost surely, 2^30214431 is an apocalyptic number.

30214431 is a deficient number, since it is larger than the sum of its proper divisors (18841569).

30214431 is a wasteful number, since it uses less digits than its factorization.

30214431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1540 (or 1534 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 30214431 is about 5496.7655034575. The cubic root of 30214431 is about 311.4618125668.

Adding to 30214431 its reverse (13441203), we get a palindrome (43655634).

The spelling of 30214431 in words is "thirty million, two hundred fourteen thousand, four hundred thirty-one".