7220713400 has 48 divisors (see below), whose sum is σ = 17145375840. Its totient is φ = 2826828800.

The previous prime is 7220713391. The next prime is 7220713441. The reversal of 7220713400 is 43170227.

It is a self number, because there is not a number n which added to its sum of digits gives 7220713400.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 374681 + ... + 393480.

It is an arithmetic number, because the mean of its divisors is an integer number (357195330).

Almost surely, 2^7220713400 is an apocalyptic number.

It is an amenable number.

7220713400 is an abundant number, since it is smaller than the sum of its proper divisors (9924662440).

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

7220713400 is a wasteful number, since it uses less digits than its factorization.

7220713400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 768224 (or 768215 counting only the distinct ones).

The product of its (nonzero) digits is 2352, while the sum is 26.

The square root of 7220713400 is about 84974.7809647074. The cubic root of 7220713400 is about 1932.8287155734.

Adding to 7220713400 its reverse (43170227), we get a palindrome (7263883627).

The spelling of 7220713400 in words is "seven billion, two hundred twenty million, seven hundred thirteen thousand, four hundred".