40207001 has 6 divisors (see below), whose sum is σ = 40517802. Its totient is φ = 39898560.

The previous prime is 40206997. The next prime is 40207007. The reversal of 40207001 is 10070204.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 32478601 + 7728400 = 5699^2 + 2780^2 .

It is not a de Polignac number, because 40207001 - 2² = 40206997 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40207007) 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 5 ways as a sum of consecutive naturals, for example, 18281 + ... + 20361.

It is an arithmetic number, because the mean of its divisors is an integer number (6752967).

Almost surely, 2^40207001 is an apocalyptic number.

It is an amenable number.

40207001 is a deficient number, since it is larger than the sum of its proper divisors (310801).

40207001 is an equidigital number, since it uses as much as digits as its factorization.

40207001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2359 (or 2220 counting only the distinct ones).

The product of its (nonzero) digits is 56, while the sum is 14.

The square root of 40207001 is about 6340.8990687441. The cubic root of 40207001 is about 342.5841191434.

Adding to 40207001 its reverse (10070204), we get a palindrome (50277205).

The spelling of 40207001 in words is "forty million, two hundred seven thousand, one".