731480 has 16 divisors (see below), whose sum is σ = 1645920. Its totient is φ = 292576.

The previous prime is 731447. The next prime is 731483. The reversal of 731480 is 84137.

It is a happy number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 731480.

It is not an unprimeable number, because it can be changed into a prime (731483) 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, 9104 + ... + 9183.

It is an arithmetic number, because the mean of its divisors is an integer number (102870).

2⁷³¹⁴⁸⁰ is an apocalyptic number.

It is an amenable number.

731480 is an abundant number, since it is smaller than the sum of its proper divisors (914440).

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

731480 is a wasteful number, since it uses less digits than its factorization.

731480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18298 (or 18294 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 23.

The square root of 731480 is about 855.2660404810. The cubic root of 731480 is about 90.1019421008.

The spelling of 731480 in words is "seven hundred thirty-one thousand, four hundred eighty".