42043001 has 32 divisors (see below), whose sum is σ = 57163008. Its totient is φ = 29859840.

The previous prime is 42042961. The next prime is 42043003. The reversal of 42043001 is 10034024.

It is a cyclic number.

It is not a de Polignac number, because 42043001 - 2⁶ = 42042937 is a prime.

It is a super-2 number, since 2×42043001² = 3535227866172002, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (42043003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 96881 + ... + 97313.

It is an arithmetic number, because the mean of its divisors is an integer number (1786344).

Almost surely, 2^42043001 is an apocalyptic number.

It is an amenable number.

42043001 is a deficient number, since it is larger than the sum of its proper divisors (15120007).

42043001 is a wasteful number, since it uses less digits than its factorization.

42043001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 561.

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 42043001 is about 6484.0574488510. The cubic root of 42043001 is about 347.7212530911.

Adding to 42043001 its reverse (10034024), we get a palindrome (52077025).

The spelling of 42043001 in words is "forty-two million, forty-three thousand, one".