1431448 has 8 divisors (see below), whose sum is σ = 2683980. Its totient is φ = 715720.

The previous prime is 1431439. The next prime is 1431449. The reversal of 1431448 is 8441341.

It is a tau number, because it is divible by the number of its divisors (8).

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1431449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 89458 + ... + 89473.

2^1431448 is an apocalyptic number.

It is an amenable number.

1431448 is a deficient number, since it is larger than the sum of its proper divisors (1252532).

1431448 is a wasteful number, since it uses less digits than its factorization.

1431448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 178937 (or 178933 counting only the distinct ones).

The product of its digits is 1536, while the sum is 25.

The square root of 1431448 is about 1196.4313603379. The cubic root of 1431448 is about 112.7003311202.

Adding to 1431448 its reverse (8441341), we get a palindrome (9872789).

The spelling of 1431448 in words is "one million, four hundred thirty-one thousand, four hundred forty-eight".