31448 has 8 divisors (see below), whose sum is σ = 58980. Its totient is φ = 15720.

The previous prime is 31397. The next prime is 31469. The reversal of 31448 is 84413.

31448 is nontrivially palindromic in base 13.

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

It is an Ulam number.

It is a nialpdrome in base 8 and base 14.

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 31448.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1958 + ... + 1973.

2³¹⁴⁴⁸ is an apocalyptic number.

It is an amenable number.

31448 is a deficient number, since it is larger than the sum of its proper divisors (27532).

31448 is a wasteful number, since it uses less digits than its factorization.

31448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3937 (or 3933 counting only the distinct ones).

The product of its digits is 384, while the sum is 20.

The square root of 31448 is about 177.3358395813. The cubic root of 31448 is about 31.5644100729.

It can be divided in two parts, 3144 and 8, that multiplied together give a palindrome (25152).

The spelling of 31448 in words is "thirty-one thousand, four hundred forty-eight".