144486638 has 16 divisors (see below), whose sum is σ = 229889664. Its totient is φ = 67872000.

The previous prime is 144486619. The next prime is 144486647. The reversal of 144486638 is 836684441.

144486638 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17138 + ... + 24138.

It is an arithmetic number, because the mean of its divisors is an integer number (14368104).

Almost surely, 2^144486638 is an apocalyptic number.

144486638 is a deficient number, since it is larger than the sum of its proper divisors (85403026).

144486638 is a wasteful number, since it uses less digits than its factorization.

144486638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7627.

The product of its digits is 442368, while the sum is 44.

The square root of 144486638 is about 12020.2594813922. The cubic root of 144486638 is about 524.7380558727.

The spelling of 144486638 in words is "one hundred forty-four million, four hundred eighty-six thousand, six hundred thirty-eight".