7213442652 has 144 divisors (see below), whose sum is σ = 20895088032. Its totient is φ = 2078576640.

The previous prime is 7213442651. The next prime is 7213442671. The reversal of 7213442652 is 2562443127.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7213442651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1676568 + ... + 1680864.

It is an arithmetic number, because the mean of its divisors is an integer number (145104778).

Almost surely, 2^7213442652 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 7213442652, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10447544016).

7213442652 is an abundant number, since it is smaller than the sum of its proper divisors (13681645380).

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

7213442652 is a wasteful number, since it uses less digits than its factorization.

7213442652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4548 (or 4543 counting only the distinct ones).

The product of its digits is 80640, while the sum is 36.

The square root of 7213442652 is about 84931.9883907118. The cubic root of 7213442652 is about 1932.1797570744.

Adding to 7213442652 its reverse (2562443127), we get a palindrome (9775885779).

The spelling of 7213442652 in words is "seven billion, two hundred thirteen million, four hundred forty-two thousand, six hundred fifty-two".