731434 has 8 divisors (see below), whose sum is σ = 1196928. Its totient is φ = 332460.

The previous prime is 731413. The next prime is 731447. The reversal of 731434 is 434137.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Harshad number since it is a multiple of its sum of digits (22), and also a Moran number because the ratio is a prime number: 33247 = 731434 / (7 + 3 + 1 + 4 + 3 + 4).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16602 + ... + 16645.

It is an arithmetic number, because the mean of its divisors is an integer number (149616).

2⁷³¹⁴³⁴ is an apocalyptic number.

731434 is a deficient number, since it is larger than the sum of its proper divisors (465494).

731434 is a wasteful number, since it uses less digits than its factorization.

731434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33260.

The product of its digits is 1008, while the sum is 22.

The square root of 731434 is about 855.2391478411. The cubic root of 731434 is about 90.1000533382.

The spelling of 731434 in words is "seven hundred thirty-one thousand, four hundred thirty-four".