40045002 has 24 divisors (see below), whose sum is σ = 80916864. Its totient is φ = 13211664.

The previous prime is 40044971. The next prime is 40045003. The reversal of 40045002 is 20054004.

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 11 ways as a sum of consecutive naturals, for example, 179463 + ... + 179685.

It is an arithmetic number, because the mean of its divisors is an integer number (3371536).

Almost surely, 2^40045002 is an apocalyptic number.

40045002 is an abundant number, since it is smaller than the sum of its proper divisors (40871862).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40045002 is a wasteful number, since it uses less digits than its factorization.

40045002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 574 (or 401 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 15.

The square root of 40045002 is about 6328.1120407275. The cubic root of 40045002 is about 342.1233951640.

Adding to 40045002 its reverse (20054004), we get a palindrome (60099006).

The spelling of 40045002 in words is "forty million, forty-five thousand, two".