40006001 has 24 divisors (see below), whose sum is σ = 49603680. Its totient is φ = 32078592.

The previous prime is 40005997. The next prime is 40006013. The reversal of 40006001 is 10060004.

It is not a de Polignac number, because 40006001 - 2² = 40005997 is a prime.

It is not an unprimeable number, because it can be changed into a prime (40006061) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 90086 + ... + 90528.

It is an arithmetic number, because the mean of its divisors is an integer number (2066820).

Almost surely, 2^40006001 is an apocalyptic number.

It is an amenable number.

40006001 is a deficient number, since it is larger than the sum of its proper divisors (9597679).

40006001 is a wasteful number, since it uses less digits than its factorization.

40006001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 573 (or 566 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 40006001 is about 6325.0297232503. The cubic root of 40006001 is about 342.0122910896.

Adding to 40006001 its reverse (10060004), we get a palindrome (50066005).

It can be divided in two parts, 4000 and 6001, that added together give a palindrome (10001).

The spelling of 40006001 in words is "forty million, six thousand, one".