144646464 has 28 divisors (see below), whose sum is σ = 382710944. Its totient is φ = 48215424.

The previous prime is 144646459. The next prime is 144646529. The reversal of 144646464 is 464646441.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 376492 + ... + 376875.

It is an arithmetic number, because the mean of its divisors is an integer number (13668248).

Almost surely, 2^144646464 is an apocalyptic number.

It is an amenable number.

144646464 is an abundant number, since it is smaller than the sum of its proper divisors (238064480).

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

144646464 is an equidigital number, since it uses as much as digits as its factorization.

144646464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 753382 (or 753372 counting only the distinct ones).

The product of its digits is 221184, while the sum is 39.

The square root of 144646464 is about 12026.9058364984. The cubic root of 144646464 is about 524.9314667911.

The spelling of 144646464 in words is "one hundred forty-four million, six hundred forty-six thousand, four hundred sixty-four".