724130 has 32 divisors (see below), whose sum is σ = 1477440. Its totient is φ = 253120.

The previous prime is 724123. The next prime is 724153. The reversal of 724130 is 31427.

It is a happy number.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 724099 and 724108.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3077 + ... + 3303.

It is an arithmetic number, because the mean of its divisors is an integer number (46170).

2⁷²⁴¹³⁰ is an apocalyptic number.

724130 is an abundant number, since it is smaller than the sum of its proper divisors (753310).

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

724130 is a wasteful number, since it uses less digits than its factorization.

724130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 274.

The product of its (nonzero) digits is 168, while the sum is 17.

The square root of 724130 is about 850.9582833488. The cubic root of 724130 is about 89.7991405384.

Adding to 724130 its reverse (31427), we get a palindrome (755557).

The spelling of 724130 in words is "seven hundred twenty-four thousand, one hundred thirty".