143640480 has 192 divisors, whose sum is σ = 496419840. Its totient is φ = 34750464.

The previous prime is 143640473. The next prime is 143640481. The reversal of 143640480 is 84046341.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (143640481) 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 31 ways as a sum of consecutive naturals, for example, 236337 + ... + 236943.

It is an arithmetic number, because the mean of its divisors is an integer number (2585520).

Almost surely, 2^143640480 is an apocalyptic number.

143640480 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 143640480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (248209920).

143640480 is an abundant number, since it is smaller than the sum of its proper divisors (352779360).

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

143640480 is a wasteful number, since it uses less digits than its factorization.

143640480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 671 (or 663 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 30.

The square root of 143640480 is about 11985.0106382932. The cubic root of 143640480 is about 523.7117074702.

The spelling of 143640480 in words is "one hundred forty-three million, six hundred forty thousand, four hundred eighty".