7273402906 has 24 divisors (see below), whose sum is σ = 13845106656. Its totient is φ = 2833792920.

The previous prime is 7273402897. The next prime is 7273402949. The reversal of 7273402906 is 6092043727.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3372486 + ... + 3374641.

It is an arithmetic number, because the mean of its divisors is an integer number (576879444).

Almost surely, 2^7273402906 is an apocalyptic number.

7273402906 is a deficient number, since it is larger than the sum of its proper divisors (6571703750).

7273402906 is a wasteful number, since it uses less digits than its factorization.

7273402906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6747154 (or 6747147 counting only the distinct ones).

The product of its (nonzero) digits is 127008, while the sum is 40.

The square root of 7273402906 is about 85284.2477014366. The cubic root of 7273402906 is about 1937.5186068057.

The spelling of 7273402906 in words is "seven billion, two hundred seventy-three million, four hundred two thousand, nine hundred six".