731071012 has 48 divisors (see below), whose sum is σ = 1510709760. Its totient is φ = 303011712.

The previous prime is 731070997. The next prime is 731071021. The reversal of 731071012 is 210170137.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 177189 + ... + 181267.

It is an arithmetic number, because the mean of its divisors is an integer number (31473120).

Almost surely, 2^731071012 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 731071012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (755354880).

731071012 is an abundant number, since it is smaller than the sum of its proper divisors (779638748).

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

731071012 is a wasteful number, since it uses less digits than its factorization.

731071012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4300 (or 4298 counting only the distinct ones).

The product of its (nonzero) digits is 294, while the sum is 22.

The square root of 731071012 is about 27038.3248741485. The cubic root of 731071012 is about 900.8514625160.

The spelling of 731071012 in words is "seven hundred thirty-one million, seventy-one thousand, twelve".