40002240402 has 12 divisors (see below), whose sum is σ = 86671520910. Its totient is φ = 13334080128.

The previous prime is 40002240401. The next prime is 40002240403. The reversal of 40002240402 is 20404220004.

40002240402 is a `hidden beast` number, since 40 + 0 + 0 + 224 + 0 + 402 = 666.

It is an interprime number because it is at equal distance from previous prime (40002240401) and next prime (40002240403).

It can be written as a sum of positive squares in only one way, i.e., 38863785321 + 1138455081 = 197139^2 + 33741^2 .

It is a super-2 number, since 2×40002240402² (a number of 22 digits) contains 22 as substring.

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: 2222346689 = 40002240402 / (4 + 0 + 0 + 0 + 2 + 2 + 4 + 0 + 4 + 0 + 2).

It is not an unprimeable number, because it can be changed into a prime (40002240401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1111173327 + ... + 1111173362.

Almost surely, 2^40002240402 is an apocalyptic number.

40002240402 is an abundant number, since it is smaller than the sum of its proper divisors (46669280508).

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

40002240402 is a wasteful number, since it uses less digits than its factorization.

40002240402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2222346697 (or 2222346694 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 18.

Adding to 40002240402 its reverse (20404220004), we get a palindrome (60406460406).

The spelling of 40002240402 in words is "forty billion, two million, two hundred forty thousand, four hundred two".