30745285 has 16 divisors (see below), whose sum is σ = 38610432. Its totient is φ = 23478400.

The previous prime is 30745283. The next prime is 30745289. The reversal of 30745285 is 58254703.

It is a happy number.

It is not a de Polignac number, because 30745285 - 2¹ = 30745283 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 30745285.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30745283) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8040 + ... + 11230.

It is an arithmetic number, because the mean of its divisors is an integer number (2413152).

Almost surely, 2^30745285 is an apocalyptic number.

It is an amenable number.

30745285 is a deficient number, since it is larger than the sum of its proper divisors (7865147).

30745285 is a wasteful number, since it uses less digits than its factorization.

30745285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3284.

The product of its (nonzero) digits is 33600, while the sum is 34.

The square root of 30745285 is about 5544.8430996738. The cubic root of 30745285 is about 313.2753143166.

Adding to 30745285 its reverse (58254703), we get a palindrome (88999988).

The spelling of 30745285 in words is "thirty million, seven hundred forty-five thousand, two hundred eighty-five".