731013426 has 96 divisors (see below), whose sum is σ = 1882258560. Its totient is φ = 202118400.

The previous prime is 731013389. The next prime is 731013427. The reversal of 731013426 is 624310137.

731013426 is a `hidden beast` number, since 7 + 310 + 1 + 342 + 6 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 731013426.

It is not an unprimeable number, because it can be changed into a prime (731013427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 227491 + ... + 230681.

It is an arithmetic number, because the mean of its divisors is an integer number (19606860).

Almost surely, 2^731013426 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 731013426, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (941129280).

731013426 is an abundant number, since it is smaller than the sum of its proper divisors (1151245134).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

731013426 is a wasteful number, since it uses less digits than its factorization.

731013426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3312 (or 3309 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 27.

The square root of 731013426 is about 27037.2599573256. The cubic root of 731013426 is about 900.8278087288.

It can be divided in two parts, 7310 and 13426, that added together give a 4-th power (20736 = 12⁴).

The spelling of 731013426 in words is "seven hundred thirty-one million, thirteen thousand, four hundred twenty-six".