430491 has 16 divisors (see below), whose sum is σ = 635904. Its totient is φ = 257664.

The previous prime is 430487. The next prime is 430499. The reversal of 430491 is 194034.

It is not a de Polignac number, because 430491 - 2² = 430487 is a prime.

430491 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (430499) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 990 + ... + 1356.

It is an arithmetic number, because the mean of its divisors is an integer number (39744).

2⁴³⁰⁴⁹¹ is an apocalyptic number.

430491 is a deficient number, since it is larger than the sum of its proper divisors (205413).

430491 is a wasteful number, since it uses less digits than its factorization.

430491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 410.

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 430491 is about 656.1181296078. The cubic root of 430491 is about 75.5071408242.

The spelling of 430491 in words is "four hundred thirty thousand, four hundred ninety-one".