42104001 has 4 divisors (see below), whose sum is σ = 56138672. Its totient is φ = 28069332.

The previous prime is 42103987. The next prime is 42104003. The reversal of 42104001 is 10040124.

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 not a de Polignac number, because 42104001 - 2¹⁵ = 42071233 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42104003) 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, 7017331 + ... + 7017336.

It is an arithmetic number, because the mean of its divisors is an integer number (14034668).

Almost surely, 2^42104001 is an apocalyptic number.

It is an amenable number.

42104001 is a deficient number, since it is larger than the sum of its proper divisors (14034671).

42104001 is a wasteful number, since it uses less digits than its factorization.

42104001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14034670.

The product of its (nonzero) digits is 32, while the sum is 12.

The square root of 42104001 is about 6488.7595887041. The cubic root of 42104001 is about 347.8893408891.

Adding to 42104001 its reverse (10040124), we get a palindrome (52144125).

The spelling of 42104001 in words is "forty-two million, one hundred four thousand, one".