712133240 has 128 divisors (see below), whose sum is σ = 2035998720. Its totient is φ = 218073600.

The previous prime is 712133203. The next prime is 712133249. The reversal of 712133240 is 42331217.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (712133249) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 109685 + ... + 115995.

It is an arithmetic number, because the mean of its divisors is an integer number (15906240).

Almost surely, 2^712133240 is an apocalyptic number.

712133240 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 712133240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1017999360).

712133240 is an abundant number, since it is smaller than the sum of its proper divisors (1323865480).

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

712133240 is a wasteful number, since it uses less digits than its factorization.

712133240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6373 (or 6369 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 23.

The square root of 712133240 is about 26685.8247015152. The cubic root of 712133240 is about 893.0047162642.

Adding to 712133240 its reverse (42331217), we get a palindrome (754464457).

The spelling of 712133240 in words is "seven hundred twelve million, one hundred thirty-three thousand, two hundred forty".