42631443 has 12 divisors (see below), whose sum is σ = 64256400. Its totient is φ = 27185136.

The previous prime is 42631441. The next prime is 42631469. The reversal of 42631443 is 34413624.

It is not a de Polignac number, because 42631443 - 2¹ = 42631441 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42631441) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 102768 + ... + 103181.

It is an arithmetic number, because the mean of its divisors is an integer number (5354700).

Almost surely, 2^42631443 is an apocalyptic number.

42631443 is a deficient number, since it is larger than the sum of its proper divisors (21624957).

42631443 is a wasteful number, since it uses less digits than its factorization.

42631443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 205978 (or 205975 counting only the distinct ones).

The product of its digits is 6912, while the sum is 27.

The square root of 42631443 is about 6529.2758403976. The cubic root of 42631443 is about 349.3360009613.

The spelling of 42631443 in words is "forty-two million, six hundred thirty-one thousand, four hundred forty-three".