30045472 has 12 divisors (see below), whose sum is σ = 59152086. Its totient is φ = 15022720.

The previous prime is 30045467. The next prime is 30045473. The reversal of 30045472 is 27454003.

It can be written as a sum of positive squares in only one way, i.e., 20034576 + 10010896 = 4476^2 + 3164^2 .

It is not an unprimeable number, because it can be changed into a prime (30045473) by changing a digit.

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 as a sum of consecutive naturals, namely, 469429 + ... + 469492.

Almost surely, 2^30045472 is an apocalyptic number.

30045472 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

30045472 is a deficient number, since it is larger than the sum of its proper divisors (29106614).

30045472 is an equidigital number, since it uses as much as digits as its factorization.

30045472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 938931 (or 938923 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 25.

The square root of 30045472 is about 5481.3750099770. The cubic root of 30045472 is about 310.8801625393.

Adding to 30045472 its reverse (27454003), we get a palindrome (57499475).

The spelling of 30045472 in words is "thirty million, forty-five thousand, four hundred seventy-two".