144638484 has 24 divisors (see below), whose sum is σ = 343859040. Its totient is φ = 47302944.

The previous prime is 144638479. The next prime is 144638489. The reversal of 144638484 is 484836441.

It is an interprime number because it is at equal distance from previous prime (144638479) and next prime (144638489).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144638489) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 113074 + ... + 114345.

It is an arithmetic number, because the mean of its divisors is an integer number (14327460).

Almost surely, 2^144638484 is an apocalyptic number.

It is an amenable number.

144638484 is an abundant number, since it is smaller than the sum of its proper divisors (199220556).

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

144638484 is a wasteful number, since it uses less digits than its factorization.

144638484 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 227479 (or 227477 counting only the distinct ones).

The product of its digits is 294912, while the sum is 42.

The square root of 144638484 is about 12026.5740757707. The cubic root of 144638484 is about 524.9218132998.

The spelling of 144638484 in words is "one hundred forty-four million, six hundred thirty-eight thousand, four hundred eighty-four".