40003450402 has 12 divisors (see below), whose sum is σ = 63329563206. Its totient is φ = 18949002480.

The previous prime is 40003450381. The next prime is 40003450427. The reversal of 40003450402 is 20405430004.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 34677515961 + 5325934441 = 186219^2 + 72979^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 27702499 + ... + 27703942.

Almost surely, 2^40003450402 is an apocalyptic number.

40003450402 is a deficient number, since it is larger than the sum of its proper divisors (23326112804).

40003450402 is a wasteful number, since it uses less digits than its factorization.

40003450402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55406481 (or 55406462 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 22.

Adding to 40003450402 its reverse (20405430004), we get a palindrome (60408880406).

The spelling of 40003450402 in words is "forty billion, three million, four hundred fifty thousand, four hundred two".