30445394 has 16 divisors (see below), whose sum is σ = 52488000. Its totient is φ = 12974064.

The previous prime is 30445381. The next prime is 30445397. The reversal of 30445394 is 49354403.

It is a self number, because there is not a number n which added to its sum of digits gives 30445394.

It is not an unprimeable number, because it can be changed into a prime (30445397) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3569 + ... + 8580.

It is an arithmetic number, because the mean of its divisors is an integer number (3280500).

Almost surely, 2^30445394 is an apocalyptic number.

30445394 is a deficient number, since it is larger than the sum of its proper divisors (22042606).

30445394 is a wasteful number, since it uses less digits than its factorization.

30445394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12337.

The product of its (nonzero) digits is 25920, while the sum is 32.

The square root of 30445394 is about 5517.7344988682. The cubic root of 30445394 is about 312.2534170010.

Adding to 30445394 its reverse (49354403), we get a palindrome (79799797).

The spelling of 30445394 in words is "thirty million, four hundred forty-five thousand, three hundred ninety-four".