7285439018 has 32 divisors (see below), whose sum is σ = 12874619520. Its totient is φ = 3048269760.

The previous prime is 7285438999. The next prime is 7285439033. The reversal of 7285439018 is 8109345827.

It is a happy 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 15 ways as a sum of consecutive naturals, for example, 67196 + ... + 138152.

It is an arithmetic number, because the mean of its divisors is an integer number (402331860).

Almost surely, 2^7285439018 is an apocalyptic number.

7285439018 is a deficient number, since it is larger than the sum of its proper divisors (5589180502).

7285439018 is a wasteful number, since it uses less digits than its factorization.

7285439018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71342.

The product of its (nonzero) digits is 483840, while the sum is 47.

The square root of 7285439018 is about 85354.7832168766. The cubic root of 7285439018 is about 1938.5867606240.

The spelling of 7285439018 in words is "seven billion, two hundred eighty-five million, four hundred thirty-nine thousand, eighteen".