143489040 has 80 divisors (see below), whose sum is σ = 446036928. Its totient is φ = 38158848.

The previous prime is 143489039. The next prime is 143489041. The reversal of 143489040 is 40984341.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (143489039) and next prime (143489041).

It is a tau number, because it is divible by the number of its divisors (80).

It is a junction number, because it is equal to n+sod(n) for n = 143488992 and 143489010.

It is not an unprimeable number, because it can be changed into a prime (143489041) 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, 130734 + ... + 131826.

Almost surely, 2^143489040 is an apocalyptic number.

143489040 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 143489040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (223018464).

143489040 is an abundant number, since it is smaller than the sum of its proper divisors (302547888).

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

143489040 is a wasteful number, since it uses less digits than its factorization.

143489040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1656 (or 1650 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 33.

The square root of 143489040 is about 11978.6910804144. The cubic root of 143489040 is about 523.5275931922.

The spelling of 143489040 in words is "one hundred forty-three million, four hundred eighty-nine thousand, forty".