731142000 has 240 divisors, whose sum is σ = 2580102720. Its totient is φ = 192960000.

The previous prime is 731141993. The next prime is 731142017. The reversal of 731142000 is 241137.

731142000 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (240).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2717866 + ... + 2718134.

It is an arithmetic number, because the mean of its divisors is an integer number (10750428).

Almost surely, 2^731142000 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 731142000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1290051360).

731142000 is an abundant number, since it is smaller than the sum of its proper divisors (1848960720).

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

731142000 is a wasteful number, since it uses less digits than its factorization.

731142000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 449 (or 430 counting only the distinct ones).

The product of its (nonzero) digits is 168, while the sum is 18.

The square root of 731142000 is about 27039.6375715356. The cubic root of 731142000 is about 900.8806195440.

Adding to 731142000 its reverse (241137), we get a palindrome (731383137).

The spelling of 731142000 in words is "seven hundred thirty-one million, one hundred forty-two thousand".