30347472 has 40 divisors (see below), whose sum is σ = 78916576. Its totient is φ = 10048896.

The previous prime is 30347441. The next prime is 30347479. The reversal of 30347472 is 27474303.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30347479) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5523 + ... + 9549.

Almost surely, 2^30347472 is an apocalyptic number.

It is an amenable number.

30347472 is an abundant number, since it is smaller than the sum of its proper divisors (48569104).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30347472 is a wasteful number, since it uses less digits than its factorization.

30347472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4195 (or 4189 counting only the distinct ones).

The product of its (nonzero) digits is 14112, while the sum is 30.

The square root of 30347472 is about 5508.8539643015. The cubic root of 30347472 is about 311.9182889243.

The spelling of 30347472 in words is "thirty million, three hundred forty-seven thousand, four hundred seventy-two".