143638272 has 108 divisors (see below), whose sum is σ = 429669240. Its totient is φ = 47858688.

The previous prime is 143638259. The next prime is 143638277. The reversal of 143638272 is 272836341.

It is a happy number.

143638272 is a `hidden beast` number, since 14 + 3 + 638 + 2 + 7 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (108).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143638277) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 61054 + ... + 63362.

Almost surely, 2^143638272 is an apocalyptic number.

143638272 is a gapful number since it is divisible by the number (12) 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 143638272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (214834620).

143638272 is an abundant number, since it is smaller than the sum of its proper divisors (286030968).

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

143638272 is an frugal number, since it uses more digits than its factorization.

143638272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2340 (or 2314 counting only the distinct ones).

The product of its digits is 48384, while the sum is 36.

The square root of 143638272 is about 11984.9185228770. The cubic root of 143638272 is about 523.7090240080.

The spelling of 143638272 in words is "one hundred forty-three million, six hundred thirty-eight thousand, two hundred seventy-two".