7272457838 has 8 divisors (see below), whose sum is σ = 10937933688. Its totient is φ = 3626479944.

The previous prime is 7272457817. The next prime is 7272457847. The reversal of 7272457838 is 8387542727.

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

It is a self number, because there is not a number n which added to its sum of digits gives 7272457838.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4873556 + ... + 4875047.

It is an arithmetic number, because the mean of its divisors is an integer number (1367241711).

Almost surely, 2^7272457838 is an apocalyptic number.

7272457838 is a deficient number, since it is larger than the sum of its proper divisors (3665475850).

7272457838 is a wasteful number, since it uses less digits than its factorization.

7272457838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9748978.

The product of its digits is 5268480, while the sum is 53.

The square root of 7272457838 is about 85278.7068264992. The cubic root of 7272457838 is about 1937.4346861535.

The spelling of 7272457838 in words is "seven billion, two hundred seventy-two million, four hundred fifty-seven thousand, eight hundred thirty-eight".