144409472 has 32 divisors (see below), whose sum is σ = 291352800. Its totient is φ = 71285760.

The previous prime is 144409469. The next prime is 144409477. The reversal of 144409472 is 274904441.

It is a tau number, because it is divible by the number of its divisors (32).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144409477) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2972 + ... + 17252.

It is an arithmetic number, because the mean of its divisors is an integer number (9104775).

Almost surely, 2^144409472 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 144409472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (145676400).

144409472 is an abundant number, since it is smaller than the sum of its proper divisors (146943328).

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

144409472 is an equidigital number, since it uses as much as digits as its factorization.

144409472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14374 (or 14362 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 35.

The square root of 144409472 is about 12017.0492218348. The cubic root of 144409472 is about 524.6446235941.

The spelling of 144409472 in words is "one hundred forty-four million, four hundred nine thousand, four hundred seventy-two".