30745250 has 32 divisors (see below), whose sum is σ = 60068736. Its totient is φ = 11761200.

The previous prime is 30745243. The next prime is 30745277. The reversal of 30745250 is 5254703.

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

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 3077 + ... + 8423.

It is an arithmetic number, because the mean of its divisors is an integer number (1877148).

Almost surely, 2^30745250 is an apocalyptic number.

30745250 is a deficient number, since it is larger than the sum of its proper divisors (29323486).

30745250 is a wasteful number, since it uses less digits than its factorization.

30745250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5387 (or 5377 counting only the distinct ones).

The product of its (nonzero) digits is 4200, while the sum is 26.

The square root of 30745250 is about 5544.8399435872. The cubic root of 30745250 is about 313.2751954404.

Adding to 30745250 its reverse (5254703), we get a palindrome (35999953).

The spelling of 30745250 in words is "thirty million, seven hundred forty-five thousand, two hundred fifty".