42143000 has 128 divisors (see below), whose sum is σ = 108838080. Its totient is φ = 15206400.

The previous prime is 42142987. The next prime is 42143027. The reversal of 42143000 is 34124.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 628967 + ... + 629033.

Almost surely, 2^42143000 is an apocalyptic number.

42143000 is a gapful number since it is divisible by the number (40) 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 42143000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (54419040).

42143000 is an abundant number, since it is smaller than the sum of its proper divisors (66695080).

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

42143000 is a wasteful number, since it uses less digits than its factorization.

42143000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142 (or 128 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 42143000 is about 6491.7640129629. The cubic root of 42143000 is about 347.9967190425.

Adding to 42143000 its reverse (34124), we get a palindrome (42177124).

The spelling of 42143000 in words is "forty-two million, one hundred forty-three thousand".