42871632 has 40 divisors (see below), whose sum is σ = 115569984. Its totient is φ = 13668864.

The previous prime is 42871601. The next prime is 42871663. The reversal of 42871632 is 23617824.

It is an interprime number because it is at equal distance from previous prime (42871601) and next prime (42871663).

It is a junction number, because it is equal to n+sod(n) for n = 42871593 and 42871602.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18313 + ... + 20520.

Almost surely, 2^42871632 is an apocalyptic number.

It is an amenable number.

42871632 is an abundant number, since it is smaller than the sum of its proper divisors (72698352).

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

42871632 is a wasteful number, since it uses less digits than its factorization.

42871632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38867 (or 38861 counting only the distinct ones).

The product of its digits is 16128, while the sum is 33.

The square root of 42871632 is about 6547.6432401285. The cubic root of 42871632 is about 349.9908351342.

The spelling of 42871632 in words is "forty-two million, eight hundred seventy-one thousand, six hundred thirty-two".