7230312 has 48 divisors (see below), whose sum is σ = 19751940. Its totient is φ = 2389248.

The previous prime is 7230299. The next prime is 7230319. The reversal of 7230312 is 2130327.

It can be written as a sum of positive squares in 2 ways, for example, as 6320196 + 910116 = 2514^2 + 954^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a zygodrome in base 5.

It is not an unprimeable number, because it can be changed into a prime (7230319) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9498 + ... + 10230.

Almost surely, 2^7230312 is an apocalyptic number.

7230312 is a gapful number since it is divisible by the number (72) 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 7230312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9875970).

7230312 is an abundant number, since it is smaller than the sum of its proper divisors (12521628).

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

7230312 is a wasteful number, since it uses less digits than its factorization.

7230312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 882 (or 875 counting only the distinct ones).

The product of its (nonzero) digits is 252, while the sum is 18.

The square root of 7230312 is about 2688.9239483481. The cubic root of 7230312 is about 193.3684782191.

Adding to 7230312 its reverse (2130327), we get a palindrome (9360639).

The spelling of 7230312 in words is "seven million, two hundred thirty thousand, three hundred twelve".