720124 has 12 divisors (see below), whose sum is σ = 1291248. Its totient is φ = 351200.

The previous prime is 720101. The next prime is 720127. The reversal of 720124 is 421027.

720124 = 112² + 113² + ... + 152².

It is a junction number, because it is equal to n+sod(n) for n = 720098 and 720107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (720127) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2032 + ... + 2359.

It is an arithmetic number, because the mean of its divisors is an integer number (107604).

2⁷²⁰¹²⁴ is an apocalyptic number.

It is an amenable number.

720124 is a deficient number, since it is larger than the sum of its proper divisors (571124).

720124 is a wasteful number, since it uses less digits than its factorization.

720124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4436 (or 4434 counting only the distinct ones).

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

The square root of 720124 is about 848.6012019789. The cubic root of 720124 is about 89.6332399524.

It can be divided in two parts, 7201 and 24, that added together give a square (7225 = 85²).

The spelling of 720124 in words is "seven hundred twenty thousand, one hundred twenty-four", and thus it is an iban number.