491434 has 16 divisors (see below), whose sum is σ = 786600. Its totient is φ = 229824.

The previous prime is 491429. The next prime is 491461. The reversal of 491434 is 434194.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 485809 + 5625 = 697^2 + 75^2 .

It is a junction number, because it is equal to n+sod(n) for n = 491399 and 491408.

It is a congruent number.

It is an unprimeable number.

491434 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2032 + ... + 2260.

2⁴⁹¹⁴³⁴ is an apocalyptic number.

491434 is a deficient number, since it is larger than the sum of its proper divisors (295166).

491434 is a wasteful number, since it uses less digits than its factorization.

491434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 297.

The product of its digits is 1728, while the sum is 25.

The square root of 491434 is about 701.0235374080. The cubic root of 491434 is about 78.9141833706.

The spelling of 491434 in words is "four hundred ninety-one thousand, four hundred thirty-four".