30450080 has 24 divisors (see below), whose sum is σ = 71938692. Its totient is φ = 12179968.

The previous prime is 30450073. The next prime is 30450089. The reversal of 30450080 is 8005403.

It can be written as a sum of positive squares in 2 ways, for example, as 26173456 + 4276624 = 5116^2 + 2068^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is not an unprimeable number, because it can be changed into a prime (30450089) 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, 94997 + ... + 95316.

Almost surely, 2^30450080 is an apocalyptic number.

It is an amenable number.

30450080 is an abundant number, since it is smaller than the sum of its proper divisors (41488612).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30450080 is a wasteful number, since it uses less digits than its factorization.

30450080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 190328 (or 190320 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 30450080 is about 5518.1591133276. The cubic root of 30450080 is about 312.2694363311.

Adding to 30450080 its reverse (8005403), we get a palindrome (38455483).

The spelling of 30450080 in words is "thirty million, four hundred fifty thousand, eighty".