7281249038 has 8 divisors (see below), whose sum is σ = 12482141232. Its totient is φ = 3120535296.

The previous prime is 7281249029. The next prime is 7281249061. The reversal of 7281249038 is 8309421827.

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 7281249038.

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, 260044595 + ... + 260044622.

It is an arithmetic number, because the mean of its divisors is an integer number (1560267654).

Almost surely, 2^7281249038 is an apocalyptic number.

7281249038 is a deficient number, since it is larger than the sum of its proper divisors (5200892194).

7281249038 is a wasteful number, since it uses less digits than its factorization.

7281249038 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 520089226.

The product of its (nonzero) digits is 193536, while the sum is 44.

The square root of 7281249038 is about 85330.2351924568. The cubic root of 7281249038 is about 1938.2150512738.

The spelling of 7281249038 in words is "seven billion, two hundred eighty-one million, two hundred forty-nine thousand, thirty-eight".