712240 has 40 divisors (see below), whose sum is σ = 1718640. Its totient is φ = 274176.

The previous prime is 712237. The next prime is 712279. The reversal of 712240 is 42217.

712240 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 (40).

It is a Harshad number since it is a multiple of its sum of digits (16).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2167 + ... + 2473.

It is an arithmetic number, because the mean of its divisors is an integer number (42966).

2⁷¹²²⁴⁰ 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 712240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (859320).

712240 is an abundant number, since it is smaller than the sum of its proper divisors (1006400).

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

712240 is a wasteful number, since it uses less digits than its factorization.

712240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 349 (or 343 counting only the distinct ones).

The product of its (nonzero) digits is 112, while the sum is 16.

The square root of 712240 is about 843.9431260458. The cubic root of 712240 is about 89.3049339196.

Adding to 712240 its reverse (42217), we get a palindrome (754457).

The spelling of 712240 in words is "seven hundred twelve thousand, two hundred forty", and thus it is an iban number.