42871238 has 16 divisors (see below), whose sum is σ = 66092544. Its totient is φ = 20846280.

The previous prime is 42871177. The next prime is 42871247. The reversal of 42871238 is 83217824.

It is a junction number, because it is equal to n+sod(n) for n = 42871198 and 42871207.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14333 + ... + 17063.

It is an arithmetic number, because the mean of its divisors is an integer number (4130784).

Almost surely, 2^42871238 is an apocalyptic number.

42871238 is a deficient number, since it is larger than the sum of its proper divisors (23221306).

42871238 is a wasteful number, since it uses less digits than its factorization.

42871238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2947.

The product of its digits is 21504, while the sum is 35.

The square root of 42871238 is about 6547.6131528978. The cubic root of 42871238 is about 349.9897629659.

The spelling of 42871238 in words is "forty-two million, eight hundred seventy-one thousand, two hundred thirty-eight".