42143028 has 24 divisors (see below), whose sum is σ = 98838432. Its totient is φ = 13975584.

The previous prime is 42143027. The next prime is 42143029. The reversal of 42143028 is 82034124.

It is an interprime number because it is at equal distance from previous prime (42143027) and next prime (42143029).

It is a junction number, because it is equal to n+sod(n) for n = 42142989 and 42143007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42143027) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6550 + ... + 11277.

It is an arithmetic number, because the mean of its divisors is an integer number (4118268).

Almost surely, 2^42143028 is an apocalyptic number.

It is an amenable number.

42143028 is an abundant number, since it is smaller than the sum of its proper divisors (56695404).

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

42143028 is a wasteful number, since it uses less digits than its factorization.

42143028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18031 (or 18029 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 24.

The square root of 42143028 is about 6491.7661695412. The cubic root of 42143028 is about 347.9967961127.

The spelling of 42143028 in words is "forty-two million, one hundred forty-three thousand, twenty-eight".