30223290 has 32 divisors (see below), whose sum is σ = 73247616. Its totient is φ = 7980480.

The previous prime is 30223289. The next prime is 30223313. The reversal of 30223290 is 9232203.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1801 + ... + 7980.

It is an arithmetic number, because the mean of its divisors is an integer number (2288988).

Almost surely, 2^30223290 is an apocalyptic number.

30223290 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

30223290 is an abundant number, since it is smaller than the sum of its proper divisors (43024326).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30223290 is a wasteful number, since it uses less digits than its factorization.

30223290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9894.

The product of its (nonzero) digits is 648, while the sum is 21.

The square root of 30223290 is about 5497.5712819390. The cubic root of 30223290 is about 311.4922502360.

Adding to 30223290 its reverse (9232203), we get a palindrome (39455493).

The spelling of 30223290 in words is "thirty million, two hundred twenty-three thousand, two hundred ninety".