142643430 has 112 divisors (see below), whose sum is σ = 407960064. Its totient is φ = 35769600.

The previous prime is 142643381. The next prime is 142643461. The reversal of 142643430 is 34346241.

142643430 is a `hidden beast` number, since 14 + 2 + 643 + 4 + 3 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 142643394 and 142643403.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 123355 + ... + 124505.

Almost surely, 2^142643430 is an apocalyptic number.

142643430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 142643430, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (203980032).

142643430 is an abundant number, since it is smaller than the sum of its proper divisors (265316634).

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

142643430 is a wasteful number, since it uses less digits than its factorization.

142643430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1193 (or 1178 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

The square root of 142643430 is about 11943.3424969729. The cubic root of 142643430 is about 522.4971482487.

Adding to 142643430 its reverse (34346241), we get a palindrome (176989671).

The spelling of 142643430 in words is "one hundred forty-two million, six hundred forty-three thousand, four hundred thirty".