42326401 has 4 divisors (see below), whose sum is σ = 45582292. Its totient is φ = 39070512.

The previous prime is 42326387. The next prime is 42326407. The reversal of 42326401 is 10462324.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 4626801 + 37699600 = 2151^2 + 6140^2 .

It is not a de Polignac number, because 42326401 - 2⁵ = 42326369 is a prime.

It is a super-2 number, since 2×42326401² = 3583048443225602, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42326407) 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 3 ways as a sum of consecutive naturals, for example, 1627926 + ... + 1627951.

It is an arithmetic number, because the mean of its divisors is an integer number (11395573).

Almost surely, 2^42326401 is an apocalyptic number.

It is an amenable number.

42326401 is a deficient number, since it is larger than the sum of its proper divisors (3255891).

42326401 is a wasteful number, since it uses less digits than its factorization.

42326401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3255890.

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

The square root of 42326401 is about 6505.8743455434. The cubic root of 42326401 is about 348.5008010674.

Adding to 42326401 its reverse (10462324), we get a palindrome (52788725).

The spelling of 42326401 in words is "forty-two million, three hundred twenty-six thousand, four hundred one".