7206556028 has 72 divisors (see below), whose sum is σ = 15203336400. Its totient is φ = 2976728832.

The previous prime is 7206556009. The next prime is 7206556051. The reversal of 7206556028 is 8206556027.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6382568 + ... + 6383696.

It is an arithmetic number, because the mean of its divisors is an integer number (211157450).

Almost surely, 2^7206556028 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 7206556028, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7601668200).

7206556028 is an abundant number, since it is smaller than the sum of its proper divisors (7996780372).

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

7206556028 is a wasteful number, since it uses less digits than its factorization.

7206556028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2299 (or 2290 counting only the distinct ones).

The product of its (nonzero) digits is 201600, while the sum is 41.

The square root of 7206556028 is about 84891.4367177279. The cubic root of 7206556028 is about 1931.5646817296.

Subtracting 7206556028 from its reverse (8206556027), we obtain a palindrome (999999999).

The spelling of 7206556028 in words is "seven billion, two hundred six million, five hundred fifty-six thousand, twenty-eight".