143430420 has 48 divisors (see below), whose sum is σ = 458978688. Its totient is φ = 32784000.

The previous prime is 143430379. The next prime is 143430431. The reversal of 143430420 is 24034341.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 170331 + ... + 171170.

It is an arithmetic number, because the mean of its divisors is an integer number (9562056).

Almost surely, 2^143430420 is an apocalyptic number.

143430420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

143430420 is an abundant number, since it is smaller than the sum of its proper divisors (315548268).

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

143430420 is a wasteful number, since it uses less digits than its factorization.

143430420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 341520 (or 341518 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 143430420 is about 11976.2439854906. The cubic root of 143430420 is about 523.4562907251.

Adding to 143430420 its reverse (24034341), we get a palindrome (167464761).

The spelling of 143430420 in words is "one hundred forty-three million, four hundred thirty thousand, four hundred twenty".