7221061504 has 32 divisors (see below), whose sum is σ = 14499014400. Its totient is φ = 3582093312.

The previous prime is 7221061499. The next prime is 7221061513. The reversal of 7221061504 is 4051601227.

It is a tau number, because it is divible by the number of its divisors (32).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 205849 + ... + 238360.

It is an arithmetic number, because the mean of its divisors is an integer number (453094200).

Almost surely, 2^7221061504 is an apocalyptic number.

It is an amenable number.

7221061504 is an abundant number, since it is smaller than the sum of its proper divisors (7277952896).

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

7221061504 is a wasteful number, since it uses less digits than its factorization.

7221061504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 444350 (or 444338 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 28.

The square root of 7221061504 is about 84976.8292183228. The cubic root of 7221061504 is about 1932.8597750434.

The spelling of 7221061504 in words is "seven billion, two hundred twenty-one million, sixty-one thousand, five hundred four".