30045490 has 8 divisors (see below), whose sum is σ = 54081900. Its totient is φ = 12018192.

The previous prime is 30045481. The next prime is 30045503. The reversal of 30045490 is 9454003.

It can be written as a sum of positive squares in 2 ways, for example, as 29997529 + 47961 = 5477^2 + 219^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1502265 + ... + 1502284.

Almost surely, 2^30045490 is an apocalyptic number.

30045490 is a deficient number, since it is larger than the sum of its proper divisors (24036410).

30045490 is a wasteful number, since it uses less digits than its factorization.

30045490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3004556.

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 30045490 is about 5481.3766519005. The cubic root of 30045490 is about 310.8802246212.

Adding to 30045490 its reverse (9454003), we get a palindrome (39499493).

The spelling of 30045490 in words is "thirty million, forty-five thousand, four hundred ninety".