42671437 has 4 divisors (see below), whose sum is σ = 43663840. Its totient is φ = 41679036.

The previous prime is 42671393. The next prime is 42671443. The reversal of 42671437 is 73417624.

42671437 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42671437 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42671477) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 496137 + ... + 496222.

It is an arithmetic number, because the mean of its divisors is an integer number (10915960).

Almost surely, 2^42671437 is an apocalyptic number.

It is an amenable number.

42671437 is a deficient number, since it is larger than the sum of its proper divisors (992403).

42671437 is an equidigital number, since it uses as much as digits as its factorization.

42671437 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 992402.

The product of its digits is 28224, while the sum is 34.

The square root of 42671437 is about 6532.3377897962. The cubic root of 42671437 is about 349.4452081280.

The spelling of 42671437 in words is "forty-two million, six hundred seventy-one thousand, four hundred thirty-seven".