30252645 has 48 divisors (see below), whose sum is σ = 54317952. Its totient is φ = 15569280.

The previous prime is 30252641. The next prime is 30252647. The reversal of 30252645 is 54625203.

It is not a de Polignac number, because 30252645 - 2² = 30252641 is a prime.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30252641) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 282682 + ... + 282788.

It is an arithmetic number, because the mean of its divisors is an integer number (1131624).

Almost surely, 2^30252645 is an apocalyptic number.

It is an amenable number.

30252645 is a deficient number, since it is larger than the sum of its proper divisors (24065307).

30252645 is a wasteful number, since it uses less digits than its factorization.

30252645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 282 (or 279 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 27.

The square root of 30252645 is about 5500.2404492895. The cubic root of 30252645 is about 311.5930653823.

Adding to 30252645 its reverse (54625203), we get a palindrome (84877848).

The spelling of 30252645 in words is "thirty million, two hundred fifty-two thousand, six hundred forty-five".