7228715730 has 16 divisors (see below), whose sum is σ = 17348917824. Its totient is φ = 1927657520.

The previous prime is 7228715729. The next prime is 7228715759. The reversal of 7228715730 is 375178227.

It is a super-2 number, since 2×7228715730² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 120478566 + ... + 120478625.

It is an arithmetic number, because the mean of its divisors is an integer number (1084307364).

Almost surely, 2^7228715730 is an apocalyptic number.

7228715730 is an abundant number, since it is smaller than the sum of its proper divisors (10120202094).

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

7228715730 is a wasteful number, since it uses less digits than its factorization.

7228715730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 240957201.

The product of its (nonzero) digits is 164640, while the sum is 42.

The square root of 7228715730 is about 85021.8544257887. The cubic root of 7228715730 is about 1933.5424688216.

The spelling of 7228715730 in words is "seven billion, two hundred twenty-eight million, seven hundred fifteen thousand, seven hundred thirty".