42243001 has 4 divisors (see below), whose sum is σ = 42267904. Its totient is φ = 42218100.

The previous prime is 42242969. The next prime is 42243007. The reversal of 42243001 is 10034224.

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 42243001 - 2⁵ = 42242969 is a prime.

It is a super-2 number, since 2×42243001² = 3568942266972002, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42243007) 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, 9705 + ... + 13366.

It is an arithmetic number, because the mean of its divisors is an integer number (10566976).

Almost surely, 2^42243001 is an apocalyptic number.

It is an amenable number.

42243001 is a deficient number, since it is larger than the sum of its proper divisors (24903).

42243001 is a wasteful number, since it uses less digits than its factorization.

42243001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24902.

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 42243001 is about 6499.4615930860. The cubic root of 42243001 is about 348.2717550746.

Adding to 42243001 its reverse (10034224), we get a palindrome (52277225).

It can be divided in two parts, 4224 and 3001, that added together give a square (7225 = 85²).

The spelling of 42243001 in words is "forty-two million, two hundred forty-three thousand, one".