7224999998 has 8 divisors (see below), whose sum is σ = 10837872192. Its totient is φ = 3612375936.

The previous prime is 7224999967. The next prime is 7225000009. The reversal of 7224999998 is 8999994227.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×7224999998² (a number of 21 digits) contains 22 as substring.

It is a Curzon number.

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, 54686 + ... + 132062.

It is an arithmetic number, because the mean of its divisors is an integer number (1354734024).

Almost surely, 2^7224999998 is an apocalyptic number.

7224999998 is a deficient number, since it is larger than the sum of its proper divisors (3612872194).

7224999998 is a wasteful number, since it uses less digits than its factorization.

7224999998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124066.

The product of its digits is 52907904, while the sum is 68.

The square root of 7224999998 is about 84999.9999882353. Note that the first 4 decimals coincide. The cubic root of 7224999998 is about 1933.2111164187.

The spelling of 7224999998 in words is "seven billion, two hundred twenty-four million, nine hundred ninety-nine thousand, nine hundred ninety-eight".