144005780 has 24 divisors (see below), whose sum is σ = 306928608. Its totient is φ = 56742048.

The previous prime is 144005779. The next prime is 144005833. The reversal of 144005780 is 87500441.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52394 + ... + 55073.

It is an arithmetic number, because the mean of its divisors is an integer number (12788692).

Almost surely, 2^144005780 is an apocalyptic number.

144005780 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

144005780 is an abundant number, since it is smaller than the sum of its proper divisors (162922828).

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

144005780 is a wasteful number, since it uses less digits than its factorization.

144005780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107543 (or 107541 counting only the distinct ones).

The product of its (nonzero) digits is 4480, while the sum is 29.

The square root of 144005780 is about 12000.2408309167. The cubic root of 144005780 is about 524.1552916578.

The spelling of 144005780 in words is "one hundred forty-four million, five thousand, seven hundred eighty".