7724412 has 72 divisors (see below), whose sum is σ = 21490560. Its totient is φ = 2328480.

The previous prime is 7724371. The next prime is 7724419. The reversal of 7724412 is 2144277.

It is a happy number.

It is a nialpdrome in base 6.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7724419) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15487 + ... + 15977.

It is an arithmetic number, because the mean of its divisors is an integer number (298480).

Almost surely, 2^7724412 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 7724412, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10745280).

7724412 is an abundant number, since it is smaller than the sum of its proper divisors (13766148).

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

7724412 is a wasteful number, since it uses less digits than its factorization.

7724412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 543 (or 538 counting only the distinct ones).

The product of its digits is 3136, while the sum is 27.

The square root of 7724412 is about 2779.2826412584. The cubic root of 7724412 is about 197.6765456582.

Adding to 7724412 its reverse (2144277), we get a palindrome (9868689).

It can be divided in two parts, 772 and 4412, that added together give a square (5184 = 72²).

The spelling of 7724412 in words is "seven million, seven hundred twenty-four thousand, four hundred twelve".