7421381306 has 8 divisors (see below), whose sum is σ = 11142278784. Its totient is φ = 3707288380.

The previous prime is 7421381293. The next prime is 7421381327. The reversal of 7421381306 is 6031831247.

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

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, 1698410 + ... + 1702773.

It is an arithmetic number, because the mean of its divisors is an integer number (1392784848).

Almost surely, 2^7421381306 is an apocalyptic number.

7421381306 is a deficient number, since it is larger than the sum of its proper divisors (3720897478).

7421381306 is a wasteful number, since it uses less digits than its factorization.

7421381306 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3402276.

The product of its (nonzero) digits is 24192, while the sum is 35.

The square root of 7421381306 is about 86147.4393467386. The cubic root of 7421381306 is about 1950.5701866233.

The spelling of 7421381306 in words is "seven billion, four hundred twenty-one million, three hundred eighty-one thousand, three hundred six".