144040668 has 12 divisors (see below), whose sum is σ = 336094920. Its totient is φ = 48013552.

The previous prime is 144040649. The next prime is 144040693. The reversal of 144040668 is 866040441.

144040668 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (12).

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors.

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, 6001683 + ... + 6001706.

It is an arithmetic number, because the mean of its divisors is an integer number (28007910).

Almost surely, 2^144040668 is an apocalyptic number.

It is an amenable number.

144040668 is an abundant number, since it is smaller than the sum of its proper divisors (192054252).

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

144040668 is a wasteful number, since it uses less digits than its factorization.

144040668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12003396 (or 12003394 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 33.

The square root of 144040668 is about 12001.6943803781. The cubic root of 144040668 is about 524.1976169340.

The spelling of 144040668 in words is "one hundred forty-four million, forty thousand, six hundred sixty-eight".