730140 has 48 divisors (see below), whose sum is σ = 2099328. Its totient is φ = 189504.

The previous prime is 730139. The next prime is 730157. The reversal of 730140 is 41037.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a nialpdrome in base 15.

It is a congruent number.

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, 2439 + ... + 2721.

It is an arithmetic number, because the mean of its divisors is an integer number (43736).

2⁷³⁰¹⁴⁰ 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 730140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1049664).

730140 is an abundant number, since it is smaller than the sum of its proper divisors (1369188).

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

730140 is a wasteful number, since it uses less digits than its factorization.

730140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 338 (or 336 counting only the distinct ones).

The product of its (nonzero) digits is 84, while the sum is 15.

The square root of 730140 is about 854.4822994071. The cubic root of 730140 is about 90.0468891472.

Adding to 730140 its reverse (41037), we get a palindrome (771177).

The spelling of 730140 in words is "seven hundred thirty thousand, one hundred forty".