40045001 has 8 divisors (see below), whose sum is σ = 41974080. Its totient is φ = 38131632.

The previous prime is 40044971. The next prime is 40045003. The reversal of 40045001 is 10054004.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 40045001 - 2⁶ = 40044937 is a prime.

It is a super-4 number, since 4×40045001⁴ (a number of 32 digits) contains 4444 as substring.

It is not an unprimeable number, because it can be changed into a prime (40045003) 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 7 ways as a sum of consecutive naturals, for example, 1466 + ... + 9068.

It is an arithmetic number, because the mean of its divisors is an integer number (5246760).

Almost surely, 2^40045001 is an apocalyptic number.

It is an amenable number.

40045001 is a deficient number, since it is larger than the sum of its proper divisors (1929079).

40045001 is a wasteful number, since it uses less digits than its factorization.

40045001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7855.

The product of its (nonzero) digits is 80, while the sum is 14.

The square root of 40045001 is about 6328.1119617150. Note that the first 3 decimals coincide. The cubic root of 40045001 is about 342.1233923161.

Adding to 40045001 its reverse (10054004), we get a palindrome (50099005).

The spelling of 40045001 in words is "forty million, forty-five thousand, one".