42314431 has 4 divisors (see below), whose sum is σ = 42496272. Its totient is φ = 42132592.

The previous prime is 42314417. The next prime is 42314471. The reversal of 42314431 is 13441324.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 42314431 - 2⁵ = 42314399 is a prime.

It is a super-2 number, since 2×42314431² = 3581022141707522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42314471) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 90571 + ... + 91036.

It is an arithmetic number, because the mean of its divisors is an integer number (10624068).

Almost surely, 2^42314431 is an apocalyptic number.

42314431 is a deficient number, since it is larger than the sum of its proper divisors (181841).

42314431 is a wasteful number, since it uses less digits than its factorization.

42314431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 181840.

The product of its digits is 1152, while the sum is 22.

The square root of 42314431 is about 6504.9543426530. The cubic root of 42314431 is about 348.4679457038.

Adding to 42314431 its reverse (13441324), we get a palindrome (55755755).

The spelling of 42314431 in words is "forty-two million, three hundred fourteen thousand, four hundred thirty-one".