144505420 has 12 divisors (see below), whose sum is σ = 303461424. Its totient is φ = 57802160.

The previous prime is 144505397. The next prime is 144505441. The reversal of 144505420 is 24505441.

It is a happy number.

144505420 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3612616 + ... + 3612655.

It is an arithmetic number, because the mean of its divisors is an integer number (25288452).

Almost surely, 2^144505420 is an apocalyptic number.

144505420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

144505420 is an abundant number, since it is smaller than the sum of its proper divisors (158956004).

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

144505420 is a wasteful number, since it uses less digits than its factorization.

144505420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7225280 (or 7225278 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 25.

The square root of 144505420 is about 12021.0407203370. The cubic root of 144505420 is about 524.7607920078.

The spelling of 144505420 in words is "one hundred forty-four million, five hundred five thousand, four hundred twenty".