144202020 has 48 divisors (see below), whose sum is σ = 425019840. Its totient is φ = 36429696.

The previous prime is 144201997. The next prime is 144202021. The reversal of 144202020 is 20202441.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is not an unprimeable number, because it can be changed into a prime (144202021) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 62107 + ... + 64386.

It is an arithmetic number, because the mean of its divisors is an integer number (8854580).

Almost surely, 2^144202020 is an apocalyptic number.

144202020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

144202020 is an abundant number, since it is smaller than the sum of its proper divisors (280817820).

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

144202020 is a wasteful number, since it uses less digits than its factorization.

144202020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126524 (or 126522 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 15.

The square root of 144202020 is about 12008.4145498063. The cubic root of 144202020 is about 524.3932764258.

Adding to 144202020 its reverse (20202441), we get a palindrome (164404461).

The spelling of 144202020 in words is "one hundred forty-four million, two hundred two thousand, twenty".