7229521140 has 48 divisors (see below), whose sum is σ = 20574516480. Its totient is φ = 1896266880.

The previous prime is 7229521139. The next prime is 7229521171. The reversal of 7229521140 is 411259227.

It is a super-3 number, since 3×7229521140³ (a number of 31 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 983980 + ... + 991299.

It is an arithmetic number, because the mean of its divisors is an integer number (428635760).

Almost surely, 2^7229521140 is an apocalyptic number.

It is an amenable number.

7229521140 is an abundant number, since it is smaller than the sum of its proper divisors (13344995340).

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

7229521140 is a wasteful number, since it uses less digits than its factorization.

7229521140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1975352 (or 1975350 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 33.

The square root of 7229521140 is about 85026.5907819430. The cubic root of 7229521140 is about 1933.6142767178.

The spelling of 7229521140 in words is "seven billion, two hundred twenty-nine million, five hundred twenty-one thousand, one hundred forty".