40224424020402 has 32 divisors (see below), whose sum is σ = 82634467450752. Its totient is φ = 13043970791424.

The previous prime is 40224424020377. The next prime is 40224424020421. The reversal of 40224424020402 is 20402042442204.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 40224424020402.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10795518 + ... + 14035385.

It is an arithmetic number, because the mean of its divisors is an integer number (2582327107836).

Almost surely, 2^{40224424020402} is an apocalyptic number.

40224424020402 is an abundant number, since it is smaller than the sum of its proper divisors (42410043430350).

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

40224424020402 is a wasteful number, since it uses less digits than its factorization.

40224424020402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24838242.

The product of its (nonzero) digits is 32768, while the sum is 30.

Adding to 40224424020402 its reverse (20402042442204), we get a palindrome (60626466462606).

The spelling of 40224424020402 in words is "forty trillion, two hundred twenty-four billion, four hundred twenty-four million, twenty thousand, four hundred two".