42204361 has 4 divisors (see below), whose sum is σ = 43565824. Its totient is φ = 40842900.

The previous prime is 42204277. The next prime is 42204373. The reversal of 42204361 is 16340224.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 42204361 - 2⁹ = 42203849 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42204391) 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, 680685 + ... + 680746.

It is an arithmetic number, because the mean of its divisors is an integer number (10891456).

Almost surely, 2^42204361 is an apocalyptic number.

It is an amenable number.

42204361 is a deficient number, since it is larger than the sum of its proper divisors (1361463).

42204361 is a wasteful number, since it uses less digits than its factorization.

42204361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1361462.

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

The square root of 42204361 is about 6496.4883591060. The cubic root of 42204361 is about 348.1655337241.

Adding to 42204361 its reverse (16340224), we get a palindrome (58544585).

The spelling of 42204361 in words is "forty-two million, two hundred four thousand, three hundred sixty-one".