144428860 has 24 divisors (see below), whose sum is σ = 304491600. Its totient is φ = 57544704.

The previous prime is 144428857. The next prime is 144428863. The reversal of 144428860 is 68824441.

It is an interprime number because it is at equal distance from previous prime (144428857) and next prime (144428863).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144428863) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8910 + ... + 19189.

It is an arithmetic number, because the mean of its divisors is an integer number (12687150).

Almost surely, 2^144428860 is an apocalyptic number.

144428860 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

144428860 is an abundant number, since it is smaller than the sum of its proper divisors (160062740).

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

144428860 is a wasteful number, since it uses less digits than its factorization.

144428860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28365 (or 28363 counting only the distinct ones).

The product of its (nonzero) digits is 49152, while the sum is 37.

The square root of 144428860 is about 12017.8558819783. The cubic root of 144428860 is about 524.6681016357.

The spelling of 144428860 in words is "one hundred forty-four million, four hundred twenty-eight thousand, eight hundred sixty".