30231000 has 96 divisors (see below), whose sum is σ = 102211200. Its totient is φ = 8059200.

The previous prime is 30230999. The next prime is 30231013. The reversal of 30231000 is 13203.

It is a happy number.

It is a super-2 number, since 2×30231000² = 1827826722000000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7321 + ... + 10679.

It is an arithmetic number, because the mean of its divisors is an integer number (1064700).

Almost surely, 2^30231000 is an apocalyptic number.

30231000 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30231000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (51105600).

30231000 is an abundant number, since it is smaller than the sum of its proper divisors (71980200).

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

30231000 is a wasteful number, since it uses less digits than its factorization.

30231000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3386 (or 3369 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 9.

The square root of 30231000 is about 5498.2724559629. The cubic root of 30231000 is about 311.5187353413.

Adding to 30231000 its reverse (13203), we get a palindrome (30244203).

The spelling of 30231000 in words is "thirty million, two hundred thirty-one thousand".