30490633 has 4 divisors (see below), whose sum is σ = 30533760. Its totient is φ = 30447508.

The previous prime is 30490591. The next prime is 30490637. The reversal of 30490633 is 33609403.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30490633 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30490637) 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, 20485 + ... + 21922.

It is an arithmetic number, because the mean of its divisors is an integer number (7633440).

Almost surely, 2^30490633 is an apocalyptic number.

It is an amenable number.

30490633 is a deficient number, since it is larger than the sum of its proper divisors (43127).

30490633 is an equidigital number, since it uses as much as digits as its factorization.

30490633 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43126.

The product of its (nonzero) digits is 5832, while the sum is 28.

The square root of 30490633 is about 5521.8323951384. The cubic root of 30490633 is about 312.4080002247.

The spelling of 30490633 in words is "thirty million, four hundred ninety thousand, six hundred thirty-three".