42022001 has 4 divisors (see below), whose sum is σ = 48025152. Its totient is φ = 36018852.

The previous prime is 42021997. The next prime is 42022031. The reversal of 42022001 is 10022024.

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 42022001 - 2² = 42021997 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (42022031) 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, 3001565 + ... + 3001578.

It is an arithmetic number, because the mean of its divisors is an integer number (12006288).

Almost surely, 2^42022001 is an apocalyptic number.

It is an amenable number.

42022001 is a deficient number, since it is larger than the sum of its proper divisors (6003151).

42022001 is an equidigital number, since it uses as much as digits as its factorization.

42022001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6003150.

The product of its (nonzero) digits is 32, while the sum is 11.

The square root of 42022001 is about 6482.4378901768. The cubic root of 42022001 is about 347.6633491811.

Adding to 42022001 its reverse (10022024), we get a palindrome (52044025).

The spelling of 42022001 in words is "forty-two million, twenty-two thousand, one".