144302472 has 80 divisors (see below), whose sum is σ = 409202640. Its totient is φ = 47503584.

The previous prime is 144302471. The next prime is 144302491. The reversal of 144302472 is 274203441.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (144302471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 52443 + ... + 55125.

It is an arithmetic number, because the mean of its divisors is an integer number (5115033).

Almost surely, 2^144302472 is an apocalyptic number.

144302472 is a gapful number since it is divisible by the number (12) 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 144302472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (204601320).

144302472 is an abundant number, since it is smaller than the sum of its proper divisors (264900168).

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

144302472 is a wasteful number, since it uses less digits than its factorization.

144302472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2784 (or 2771 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 27.

The square root of 144302472 is about 12012.5963887912. The cubic root of 144302472 is about 524.5150133395.

The spelling of 144302472 in words is "one hundred forty-four million, three hundred two thousand, four hundred seventy-two".