144591804 has 144 divisors (see below), whose sum is σ = 440294400. Its totient is φ = 40637376.

The previous prime is 144591793. The next prime is 144591809. The reversal of 144591804 is 408195441.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144591809) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 537382 + ... + 537650.

It is an arithmetic number, because the mean of its divisors is an integer number (3057600).

Almost surely, 2^144591804 is an apocalyptic number.

144591804 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 144591804, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (220147200).

144591804 is an abundant number, since it is smaller than the sum of its proper divisors (295702596).

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

144591804 is a wasteful number, since it uses less digits than its factorization.

144591804 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 374 (or 360 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 36.

The square root of 144591804 is about 12024.6332168595. The cubic root of 144591804 is about 524.8653368903.

The spelling of 144591804 in words is "one hundred forty-four million, five hundred ninety-one thousand, eight hundred four".