42143580 has 36 divisors (see below), whose sum is σ = 127836072. Its totient is φ = 11238240.

The previous prime is 42143573. The next prime is 42143593. The reversal of 42143580 is 8534124.

42143580 is a `hidden beast` number, since 42 + 1 + 43 + 580 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 116886 + ... + 117245.

It is an arithmetic number, because the mean of its divisors is an integer number (3551002).

Almost surely, 2^42143580 is an apocalyptic number.

It is an amenable number.

42143580 is an abundant number, since it is smaller than the sum of its proper divisors (85692492).

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

42143580 is a wasteful number, since it uses less digits than its factorization.

42143580 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 234146 (or 234141 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

The square root of 42143580 is about 6491.8086847966. The cubic root of 42143580 is about 347.9983154893.

The spelling of 42143580 in words is "forty-two million, one hundred forty-three thousand, five hundred eighty".