65231448 has 64 divisors (see below), whose sum is σ = 175569120. Its totient is φ = 20121600.

The previous prime is 65231437. The next prime is 65231461. The reversal of 65231448 is 84413256.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23578 + ... + 26198.

Almost surely, 2^65231448 is an apocalyptic number.

65231448 is a gapful number since it is divisible by the number (68) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 65231448, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (87784560).

65231448 is an abundant number, since it is smaller than the sum of its proper divisors (110337672).

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

65231448 is a wasteful number, since it uses less digits than its factorization.

65231448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2708 (or 2704 counting only the distinct ones).

The product of its digits is 23040, while the sum is 33.

The square root of 65231448 is about 8076.5987890943. The cubic root of 65231448 is about 402.5492356472.

The spelling of 65231448 in words is "sixty-five million, two hundred thirty-one thousand, four hundred forty-eight".