30702272 has 28 divisors (see below), whose sum is σ = 64510920. Its totient is φ = 14447616.

The previous prime is 30702257. The next prime is 30702277. The reversal of 30702272 is 27220703.

It is not an unprimeable number, because it can be changed into a prime (30702277) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13022 + ... + 15197.

Almost surely, 2^30702272 is an apocalyptic number.

30702272 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

30702272 is an abundant number, since it is smaller than the sum of its proper divisors (33808648).

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

30702272 is a wasteful number, since it uses less digits than its factorization.

30702272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28248 (or 28238 counting only the distinct ones).

The product of its (nonzero) digits is 1176, while the sum is 23.

The square root of 30702272 is about 5540.9630931815. The cubic root of 30702272 is about 313.1291542378.

Adding to 30702272 its reverse (27220703), we get a palindrome (57922975).

The spelling of 30702272 in words is "thirty million, seven hundred two thousand, two hundred seventy-two".