144031446 has 128 divisors (see below), whose sum is σ = 371952000. Its totient is φ = 41430528.

The previous prime is 144031439. The next prime is 144031469. The reversal of 144031446 is 644130441.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 966580 + ... + 966728.

It is an arithmetic number, because the mean of its divisors is an integer number (2905875).

Almost surely, 2^144031446 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 144031446, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (185976000).

144031446 is an abundant number, since it is smaller than the sum of its proper divisors (227920554).

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

144031446 is a wasteful number, since it uses less digits than its factorization.

144031446 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 202 (or 184 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

The square root of 144031446 is about 12001.3101784763. The cubic root of 144031446 is about 524.1864296916.

Adding to 144031446 its reverse (644130441), we get a palindrome (788161887).

The spelling of 144031446 in words is "one hundred forty-four million, thirty-one thousand, four hundred forty-six".