30252681 has 12 divisors (see below), whose sum is σ = 43929600. Its totient is φ = 20061720.

The previous prime is 30252679. The next prime is 30252689. The reversal of 30252681 is 18625203.

It is not a de Polignac number, because 30252681 - 2¹ = 30252679 is a prime.

It is a super-2 number, since 2×30252681² = 1830449415375522, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (30252689) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7081 + ... + 10518.

It is an arithmetic number, because the mean of its divisors is an integer number (3660800).

Almost surely, 2^30252681 is an apocalyptic number.

It is an amenable number.

30252681 is a deficient number, since it is larger than the sum of its proper divisors (13676919).

30252681 is a wasteful number, since it uses less digits than its factorization.

30252681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17796 (or 17793 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 30252681 is about 5500.2437218727. The cubic root of 30252681 is about 311.5931889786.

Adding to 30252681 its reverse (18625203), we get a palindrome (48877884).

The spelling of 30252681 in words is "thirty million, two hundred fifty-two thousand, six hundred eighty-one".