30490231 has 8 divisors (see below), whose sum is σ = 33983280. Its totient is φ = 27186048.

The previous prime is 30490199. The next prime is 30490237. The reversal of 30490231 is 13209403.

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

It is a cyclic number.

It is not a de Polignac number, because 30490231 - 2⁵ = 30490199 is a prime.

It is a super-2 number, since 2×30490231² = 1859308372866722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30490237) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46876 + ... + 47521.

It is an arithmetic number, because the mean of its divisors is an integer number (4247910).

Almost surely, 2^30490231 is an apocalyptic number.

30490231 is a deficient number, since it is larger than the sum of its proper divisors (3493049).

30490231 is a wasteful number, since it uses less digits than its factorization.

30490231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94433.

The product of its (nonzero) digits is 648, while the sum is 22.

The square root of 30490231 is about 5521.7959940585. The cubic root of 30490231 is about 312.4066272503.

Adding to 30490231 its reverse (13209403), we get a palindrome (43699634).

The spelling of 30490231 in words is "thirty million, four hundred ninety thousand, two hundred thirty-one".