40345002 has 12 divisors (see below), whose sum is σ = 87414210. Its totient is φ = 13448328.

The previous prime is 40345001. The next prime is 40345021. The reversal of 40345002 is 20054304.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 40335201 + 9801 = 6351^2 + 99^2 .

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 2241389 = 40345002 / (4 + 0 + 3 + 4 + 5 + 0 + 0 + 2).

It is not an unprimeable number, because it can be changed into a prime (40345001) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1120677 + ... + 1120712.

Almost surely, 2^40345002 is an apocalyptic number.

40345002 is an abundant number, since it is smaller than the sum of its proper divisors (47069208).

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

40345002 is a wasteful number, since it uses less digits than its factorization.

40345002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2241397 (or 2241394 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 18.

The square root of 40345002 is about 6351.7715639025. The cubic root of 40345002 is about 342.9756178358.

Adding to 40345002 its reverse (20054304), we get a palindrome (60399306).

The spelling of 40345002 in words is "forty million, three hundred forty-five thousand, two".