143643340 has 24 divisors (see below), whose sum is σ = 304325280. Its totient is φ = 56947968.

The previous prime is 143643337. The next prime is 143643371. The reversal of 143643340 is 43346341.

143643340 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 143643299 and 143643308.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29520 + ... + 34039.

It is an arithmetic number, because the mean of its divisors is an integer number (12680220).

Almost surely, 2^143643340 is an apocalyptic number.

143643340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

143643340 is an abundant number, since it is smaller than the sum of its proper divisors (160681940).

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

143643340 is a wasteful number, since it uses less digits than its factorization.

143643340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63681 (or 63679 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 28.

The square root of 143643340 is about 11985.1299534048. The cubic root of 143643340 is about 523.7151832906.

Adding to 143643340 its reverse (43346341), we get a palindrome (186989681).

The spelling of 143643340 in words is "one hundred forty-three million, six hundred forty-three thousand, three hundred forty".