144233440 has 96 divisors (see below), whose sum is σ = 388644480. Its totient is φ = 50110464.

The previous prime is 144233429. The next prime is 144233461. The reversal of 144233440 is 44332441.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33321 + ... + 37399.

It is an arithmetic number, because the mean of its divisors is an integer number (4048380).

Almost surely, 2^144233440 is an apocalyptic number.

144233440 is a gapful number since it is divisible by the number (10) 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 144233440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (194322240).

144233440 is an abundant number, since it is smaller than the sum of its proper divisors (244411040).

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

144233440 is a wasteful number, since it uses less digits than its factorization.

144233440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4124 (or 4116 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 25.

The square root of 144233440 is about 12009.7227278568. The cubic root of 144233440 is about 524.4313601277.

Adding to 144233440 its reverse (44332441), we get a palindrome (188565881).

Subtracting from 144233440 its reverse (44332441), we obtain a palindrome (99900999).

The spelling of 144233440 in words is "one hundred forty-four million, two hundred thirty-three thousand, four hundred forty".