42531422 has 8 divisors (see below), whose sum is σ = 63987456. Its totient is φ = 21202272.

The previous prime is 42531413. The next prime is 42531431. The reversal of 42531422 is 22413524.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (42531413) and next prime (42531431).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30878 + ... + 32225.

It is an arithmetic number, because the mean of its divisors is an integer number (7998432).

Almost surely, 2^42531422 is an apocalyptic number.

42531422 is a deficient number, since it is larger than the sum of its proper divisors (21456034).

42531422 is a wasteful number, since it uses less digits than its factorization.

42531422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63442.

The product of its digits is 1920, while the sum is 23.

The square root of 42531422 is about 6521.6119173100. The cubic root of 42531422 is about 349.0625854159.

Adding to 42531422 its reverse (22413524), we get a palindrome (64944946).

The spelling of 42531422 in words is "forty-two million, five hundred thirty-one thousand, four hundred twenty-two".