40002404402 has 32 divisors (see below), whose sum is σ = 65358627840. Its totient is φ = 18306351360.

The previous prime is 40002404401. The next prime is 40002404423. The reversal of 40002404402 is 20440420004.

It is a super-2 number, since 2×40002404402² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (40002404401) 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 15 ways as a sum of consecutive naturals, for example, 30683 + ... + 284510.

It is an arithmetic number, because the mean of its divisors is an integer number (2042457120).

Almost surely, 2^40002404402 is an apocalyptic number.

40002404402 is a deficient number, since it is larger than the sum of its proper divisors (25356223438).

40002404402 is a wasteful number, since it uses less digits than its factorization.

40002404402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 315338.

The product of its (nonzero) digits is 1024, while the sum is 20.

Adding to 40002404402 its reverse (20440420004), we get a palindrome (60442824406).

The spelling of 40002404402 in words is "forty billion, two million, four hundred four thousand, four hundred two".