30290 has 16 divisors (see below), whose sum is σ = 58968. Its totient is φ = 11136.

The previous prime is 30271. The next prime is 30293. The reversal of 30290 is 9203.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 14161 + 16129 = 119^2 + 127^2 .

It is a nialpdrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (30293) 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, 14 + ... + 246.

2³⁰²⁹⁰ is an apocalyptic number.

30290 is a deficient number, since it is larger than the sum of its proper divisors (28678).

30290 is a wasteful number, since it uses less digits than its factorization.

30290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 253.

The product of its (nonzero) digits is 54, while the sum is 14.

The square root of 30290 is about 174.0402252354. The cubic root of 30290 is about 31.1721261022.

Subtracting from 30290 its sum of digits (14), we obtain a square (30276 = 174²).

Adding to 30290 its reverse (9203), we get a palindrome (39493).

The spelling of 30290 in words is "thirty thousand, two hundred ninety".