143072340 has 144 divisors (see below), whose sum is σ = 439014912. Its totient is φ = 34781184.

The previous prime is 143072317. The next prime is 143072383. The reversal of 143072340 is 43270341.

143072340 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 143072340.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 641469 + ... + 641691.

Almost surely, 2^143072340 is an apocalyptic number.

143072340 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 143072340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (219507456).

143072340 is an abundant number, since it is smaller than the sum of its proper divisors (295942572).

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

143072340 is a wasteful number, since it uses less digits than its factorization.

143072340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 306 (or 287 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 24.

The square root of 143072340 is about 11961.2850480206. The cubic root of 143072340 is about 523.0203175925.

The spelling of 143072340 in words is "one hundred forty-three million, seventy-two thousand, three hundred forty".