30490893 has 12 divisors (see below), whose sum is σ = 45957600. Its totient is φ = 19443336.

The previous prime is 30490891. The next prime is 30490909. The reversal of 30490893 is 39809403.

It is not a de Polignac number, because 30490893 - 2¹ = 30490891 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30490891) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 73443 + ... + 73856.

It is an arithmetic number, because the mean of its divisors is an integer number (3829800).

Almost surely, 2^30490893 is an apocalyptic number.

It is an amenable number.

30490893 is a deficient number, since it is larger than the sum of its proper divisors (15466707).

30490893 is a wasteful number, since it uses less digits than its factorization.

30490893 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147328 (or 147325 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 36.

The square root of 30490893 is about 5521.8559379977. The cubic root of 30490893 is about 312.4088882116.

The spelling of 30490893 in words is "thirty million, four hundred ninety thousand, eight hundred ninety-three".