42401323 has 4 divisors (see below), whose sum is σ = 42464088. Its totient is φ = 42338560.

The previous prime is 42401321. The next prime is 42401347. The reversal of 42401323 is 32310424.

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 42401323 - 2¹ = 42401321 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 42401323.

It is not an unprimeable number, because it can be changed into a prime (42401321) 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, 30358 + ... + 31723.

It is an arithmetic number, because the mean of its divisors is an integer number (10616022).

Almost surely, 2^42401323 is an apocalyptic number.

42401323 is a deficient number, since it is larger than the sum of its proper divisors (62765).

42401323 is an equidigital number, since it uses as much as digits as its factorization.

42401323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62764.

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 42401323 is about 6511.6298267024. The cubic root of 42401323 is about 348.7063070521.

Adding to 42401323 its reverse (32310424), we get a palindrome (74711747).

It can be divided in two parts, 42401 and 323, that added together give a palindrome (42724).

The spelling of 42401323 in words is "forty-two million, four hundred one thousand, three hundred twenty-three".