724012 has 6 divisors (see below), whose sum is σ = 1267028. Its totient is φ = 362004.

The previous prime is 724007. The next prime is 724021. The reversal of 724012 is 210427.

It is a super-2 number, since 2×724012² = 1048386752288, which contains 22 as substring.

It is an unprimeable number.

724012 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 90498 + ... + 90505.

2⁷²⁴⁰¹² is an apocalyptic number.

It is an amenable number.

724012 is a deficient number, since it is larger than the sum of its proper divisors (543016).

724012 is a wasteful number, since it uses less digits than its factorization.

724012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 181007 (or 181005 counting only the distinct ones).

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

The square root of 724012 is about 850.8889469255. Note that the first 3 decimals coincide. The cubic root of 724012 is about 89.7942625587.

Adding to 724012 its reverse (210427), we get a palindrome (934439).

The spelling of 724012 in words is "seven hundred twenty-four thousand, twelve", and thus it is an iban number.