40404220402 has 32 divisors (see below), whose sum is σ = 74677180032. Its totient is φ = 15965921664.

The previous prime is 40404220387. The next prime is 40404220403. The reversal of 40404220402 is 20402240404.

It is not an unprimeable number, because it can be changed into a prime (40404220403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34998 + ... + 286414.

It is an arithmetic number, because the mean of its divisors is an integer number (2333661876).

Almost surely, 2^40404220402 is an apocalyptic number.

40404220402 is a deficient number, since it is larger than the sum of its proper divisors (34272959630).

40404220402 is a wasteful number, since it uses less digits than its factorization.

40404220402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 252322.

The product of its (nonzero) digits is 2048, while the sum is 22.

Adding to 40404220402 its reverse (20402240404), we get a palindrome (60806460806).

The spelling of 40404220402 in words is "forty billion, four hundred four million, two hundred twenty thousand, four hundred two".