7224741218 has 6 divisors (see below), whose sum is σ = 10837292139. Its totient is φ = 3612310506.

The previous prime is 7224741187. The next prime is 7224741221. The reversal of 7224741218 is 8121474227.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 3612370609 + 3612370609 = 60103^2 + 60103^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=60103.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 90155 + ... + 150257.

Almost surely, 2^7224741218 is an apocalyptic number.

7224741218 is a deficient number, since it is larger than the sum of its proper divisors (3612550921).

7224741218 is an frugal number, since it uses more digits than its factorization.

7224741218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120208 (or 60105 counting only the distinct ones).

The product of its digits is 50176, while the sum is 38.

The square root of 7224741218 is about 84998.4777393101. The cubic root of 7224741218 is about 1933.1880353416.

The spelling of 7224741218 in words is "seven billion, two hundred twenty-four million, seven hundred forty-one thousand, two hundred eighteen".