7312448 has 112 divisors (see below), whose sum is σ = 18434304. Its totient is φ = 2826240.

The previous prime is 7312441. The next prime is 7312453. The reversal of 7312448 is 8442137.

It is a self number, because there is not a number n which added to its sum of digits gives 7312448.

It is not an unprimeable number, because it can be changed into a prime (7312441) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 155561 + ... + 155607.

It is an arithmetic number, because the mean of its divisors is an integer number (164592).

Almost surely, 2^7312448 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7312448, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9217152).

7312448 is an abundant number, since it is smaller than the sum of its proper divisors (11121856).

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

7312448 is a wasteful number, since it uses less digits than its factorization.

7312448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100 (or 90 counting only the distinct ones).

The product of its digits is 5376, while the sum is 29.

The square root of 7312448 is about 2704.1538417775. The cubic root of 7312448 is about 194.0979418302.

It can be divided in two parts, 73 and 12448, that added together give a palindrome (12521).

The spelling of 7312448 in words is "seven million, three hundred twelve thousand, four hundred forty-eight".