144091644 has 24 divisors (see below), whose sum is σ = 339480960. Its totient is φ = 47563824.

The previous prime is 144091639. The next prime is 144091669. The reversal of 144091644 is 446190441.

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, 57054 + ... + 59525.

It is an arithmetic number, because the mean of its divisors is an integer number (14145040).

Almost surely, 2^144091644 is an apocalyptic number.

It is an amenable number.

144091644 is an abundant number, since it is smaller than the sum of its proper divisors (195389316).

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

144091644 is a wasteful number, since it uses less digits than its factorization.

144091644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116689 (or 116687 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 33.

The square root of 144091644 is about 12003.8178926540. The cubic root of 144091644 is about 524.2594474954.

The spelling of 144091644 in words is "one hundred forty-four million, ninety-one thousand, six hundred forty-four".