30472371 has 36 divisors (see below), whose sum is σ = 47429928. Its totient is φ = 18845568.

The previous prime is 30472369. The next prime is 30472397. The reversal of 30472371 is 17327403.

It is not a de Polignac number, because 30472371 - 2¹ = 30472369 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30472271) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 269611 + ... + 269723.

It is an arithmetic number, because the mean of its divisors is an integer number (1317498).

Almost surely, 2^30472371 is an apocalyptic number.

30472371 is a deficient number, since it is larger than the sum of its proper divisors (16957557).

30472371 is a wasteful number, since it uses less digits than its factorization.

30472371 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 240 (or 218 counting only the distinct ones).

The product of its (nonzero) digits is 3528, while the sum is 27.

The square root of 30472371 is about 5520.1785297217. The cubic root of 30472371 is about 312.3456167565.

Adding to 30472371 its reverse (17327403), we get a palindrome (47799774).

The spelling of 30472371 in words is "thirty million, four hundred seventy-two thousand, three hundred seventy-one".