144767420 has 96 divisors (see below), whose sum is σ = 363242880. Its totient is φ = 47416320.

The previous prime is 144767419. The next prime is 144767423. The reversal of 144767420 is 24767441.

144767420 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144767423) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 734762 + ... + 734958.

It is an arithmetic number, because the mean of its divisors is an integer number (3783780).

Almost surely, 2^144767420 is an apocalyptic number.

144767420 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 144767420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (181621440).

144767420 is an abundant number, since it is smaller than the sum of its proper divisors (218475460).

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

144767420 is a wasteful number, since it uses less digits than its factorization.

144767420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 423 (or 421 counting only the distinct ones).

The product of its (nonzero) digits is 37632, while the sum is 35.

The square root of 144767420 is about 12031.9333442303. The cubic root of 144767420 is about 525.0777451002.

The spelling of 144767420 in words is "one hundred forty-four million, seven hundred sixty-seven thousand, four hundred twenty".