144209664 has 54 divisors (see below), whose sum is σ = 415798656. Its totient is φ = 48069120.

The previous prime is 144209651. The next prime is 144209671. The reversal of 144209664 is 466902441.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 28992 + ... + 33599.

Almost surely, 2^144209664 is an apocalyptic number.

It is an amenable number.

144209664 is an abundant number, since it is smaller than the sum of its proper divisors (271588992).

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

144209664 is an equidigital number, since it uses as much as digits as its factorization.

144209664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62613 (or 62596 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 36.

The square root of 144209664 is about 12008.7328224089. The cubic root of 144209664 is about 524.4025421106.

The spelling of 144209664 in words is "one hundred forty-four million, two hundred nine thousand, six hundred sixty-four".