40420100402 has 64 divisors (see below), whose sum is σ = 68919621120. Its totient is φ = 17617305600.

The previous prime is 40420100393. The next prime is 40420100411. The reversal of 40420100402 is 20400102404.

It is an interprime number because it is at equal distance from previous prime (40420100393) and next prime (40420100411).

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 21396674 + ... + 21398562.

It is an arithmetic number, because the mean of its divisors is an integer number (1076869080).

Almost surely, 2^40420100402 is an apocalyptic number.

40420100402 is a deficient number, since it is larger than the sum of its proper divisors (28499520718).

40420100402 is a wasteful number, since it uses less digits than its factorization.

40420100402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2307.

The product of its (nonzero) digits is 256, while the sum is 17.

Adding to 40420100402 its reverse (20400102404), we get a palindrome (60820202806).

The spelling of 40420100402 in words is "forty billion, four hundred twenty million, one hundred thousand, four hundred two".