30493090 has 8 divisors (see below), whose sum is σ = 54887580. Its totient is φ = 12197232.

The previous prime is 30493051. The next prime is 30493093. The reversal of 30493090 is 9039403.

It can be written as a sum of positive squares in 2 ways, for example, as 29713401 + 779689 = 5451^2 + 883^2 .

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

It is not an unprimeable number, because it can be changed into a prime (30493093) 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 in 3 ways as a sum of consecutive naturals, for example, 1524645 + ... + 1524664.

Almost surely, 2^30493090 is an apocalyptic number.

30493090 is a deficient number, since it is larger than the sum of its proper divisors (24394490).

30493090 is a wasteful number, since it uses less digits than its factorization.

30493090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3049316.

The product of its (nonzero) digits is 2916, while the sum is 28.

The square root of 30493090 is about 5522.0548711508. The cubic root of 30493090 is about 312.4163914994.

The spelling of 30493090 in words is "thirty million, four hundred ninety-three thousand, ninety".