30045644 has 12 divisors (see below), whose sum is σ = 52768968. Its totient is φ = 14968800.

The previous prime is 30045629. The next prime is 30045649. The reversal of 30045644 is 44654003.

It is not an unprimeable number, because it can be changed into a prime (30045649) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12242 + ... + 14489.

It is an arithmetic number, because the mean of its divisors is an integer number (4397414).

Almost surely, 2^30045644 is an apocalyptic number.

It is an amenable number.

30045644 is a deficient number, since it is larger than the sum of its proper divisors (22723324).

30045644 is a wasteful number, since it uses less digits than its factorization.

30045644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27016 (or 27014 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 26.

The square root of 30045644 is about 5481.3906994485. The cubic root of 30045644 is about 310.8807557655.

Adding to 30045644 its reverse (44654003), we get a palindrome (74699647).

The spelling of 30045644 in words is "thirty million, forty-five thousand, six hundred forty-four".