143433420 has 192 divisors, whose sum is σ = 475009920. Its totient is φ = 31997952.

The previous prime is 143433401. The next prime is 143433439. The reversal of 143433420 is 24334341.

It is an interprime number because it is at equal distance from previous prime (143433401) and next prime (143433439).

It is an unprimeable number.

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 63 ways as a sum of consecutive naturals, for example, 384354 + ... + 384726.

It is an arithmetic number, because the mean of its divisors is an integer number (2474010).

Almost surely, 2^143433420 is an apocalyptic number.

143433420 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 143433420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (237504960).

143433420 is an abundant number, since it is smaller than the sum of its proper divisors (331576500).

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

143433420 is a wasteful number, since it uses less digits than its factorization.

143433420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 444 (or 442 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 24.

The square root of 143433420 is about 11976.3692327850. The cubic root of 143433420 is about 523.4599402483.

Adding to 143433420 its reverse (24334341), we get a palindrome (167767761).

The spelling of 143433420 in words is "one hundred forty-three million, four hundred thirty-three thousand, four hundred twenty".