431449 has 2 divisors, whose sum is σ = 431450. Its totient is φ = 431448.

The previous prime is 431447. The next prime is 431479. The reversal of 431449 is 944134.

It is a happy number.

431449 is nontrivially palindromic in base 14.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 403225 + 28224 = 635^2 + 168^2 .

It is a cyclic number.

It is not a de Polignac number, because 431449 - 2¹ = 431447 is a prime.

It is a super-2 number, since 2×431449² = 372296479202, which contains 22 as substring.

Together with 431447, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (431441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 215724 + 215725.

It is an arithmetic number, because the mean of its divisors is an integer number (215725).

2⁴³¹⁴⁴⁹ is an apocalyptic number.

It is an amenable number.

431449 is a deficient number, since it is larger than the sum of its proper divisors (1).

431449 is an equidigital number, since it uses as much as digits as its factorization.

431449 is an evil number, because the sum of its binary digits is even.

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

The square root of 431449 is about 656.8477753635. The cubic root of 431449 is about 75.5631096670.

The spelling of 431449 in words is "four hundred thirty-one thousand, four hundred forty-nine".