431448 has 16 divisors (see below), whose sum is σ = 1078680. Its totient is φ = 143808.

The previous prime is 431447. The next prime is 431449. The reversal of 431448 is 844134.

It is an interprime number because it is at equal distance from previous prime (431447) and next prime (431449).

It is a super-2 number, since 2×431448² = 372294753408, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24), and also a Moran number because the ratio is a prime number: 17977 = 431448 / (4 + 3 + 1 + 4 + 4 + 8).

It is a nude number because it is divisible by every one of its digits.

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 431448.

It is not an unprimeable number, because it can be changed into a prime (431441) 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, 8965 + ... + 9012.

2⁴³¹⁴⁴⁸ is an apocalyptic number.

It is an amenable number.

431448 is an abundant number, since it is smaller than the sum of its proper divisors (647232).

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

431448 is a wasteful number, since it uses less digits than its factorization.

431448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17986 (or 17982 counting only the distinct ones).

The product of its digits is 1536, while the sum is 24.

The square root of 431448 is about 656.8470141517. The cubic root of 431448 is about 75.5630512876.

Subtracting 431448 from its reverse (844134), we obtain a triangular number (412686 = T₉₀₈).

The spelling of 431448 in words is "four hundred thirty-one thousand, four hundred forty-eight".