42431254 has 4 divisors (see below), whose sum is σ = 63646884. Its totient is φ = 21215626.

The previous prime is 42431231. The next prime is 42431261. The reversal of 42431254 is 45213424.

It is a happy number.

42431254 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.

It is a super-2 number, since 2×42431254² = 3600822632025032, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 10607812 + ... + 10607815.

It is an arithmetic number, because the mean of its divisors is an integer number (15911721).

Almost surely, 2^42431254 is an apocalyptic number.

42431254 is a deficient number, since it is larger than the sum of its proper divisors (21215630).

42431254 is a wasteful number, since it uses less digits than its factorization.

42431254 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21215629.

The product of its digits is 3840, while the sum is 25.

The square root of 42431254 is about 6513.9276937958. The cubic root of 42431254 is about 348.7883380900.

Adding to 42431254 its reverse (45213424), we get a palindrome (87644678).

The spelling of 42431254 in words is "forty-two million, four hundred thirty-one thousand, two hundred fifty-four".