42401223 has 12 divisors (see below), whose sum is σ = 62902008. Its totient is φ = 27503280.

The previous prime is 42401209. The next prime is 42401231. The reversal of 42401223 is 32210424.

42401223 is a `hidden beast` number, since 42 + 401 + 223 = 666.

It is not a de Polignac number, because 42401223 - 2⁶ = 42401159 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 42401196 and 42401205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42401243) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 63333 + ... + 63998.

It is an arithmetic number, because the mean of its divisors is an integer number (5241834).

Almost surely, 2^42401223 is an apocalyptic number.

42401223 is a deficient number, since it is larger than the sum of its proper divisors (20500785).

42401223 is a wasteful number, since it uses less digits than its factorization.

42401223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127374 (or 127371 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 42401223 is about 6511.6221481287. The cubic root of 42401223 is about 348.7060329203.

Adding to 42401223 its reverse (32210424), we get a palindrome (74611647).

It can be divided in two parts, 42401 and 223, that added together give a palindrome (42624).

The spelling of 42401223 in words is "forty-two million, four hundred one thousand, two hundred twenty-three".