42641423 has 16 divisors (see below), whose sum is σ = 50409216. Its totient is φ = 35629440.

The previous prime is 42641419. The next prime is 42641449. The reversal of 42641423 is 32414624.

It is not a de Polignac number, because 42641423 - 2² = 42641419 is a prime.

It is a plaindrome in base 12.

It is a junction number, because it is equal to n+sod(n) for n = 42641392 and 42641401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42641023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5390 + ... + 10692.

It is an arithmetic number, because the mean of its divisors is an integer number (3150576).

Almost surely, 2^42641423 is an apocalyptic number.

42641423 is a gapful number since it is divisible by the number (43) formed by its first and last digit.

42641423 is a deficient number, since it is larger than the sum of its proper divisors (7767793).

42641423 is a wasteful number, since it uses less digits than its factorization.

42641423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5374.

The product of its digits is 4608, while the sum is 26.

The square root of 42641423 is about 6530.0400458190. The cubic root of 42641423 is about 349.3632586302.

The spelling of 42641423 in words is "forty-two million, six hundred forty-one thousand, four hundred twenty-three".