40402224424 has 16 divisors (see below), whose sum is σ = 76504213620. Its totient is φ = 20001100800.

The previous prime is 40402224389. The next prime is 40402224433. The reversal of 40402224424 is 42442220404.

It can be written as a sum of positive squares in 2 ways, for example, as 40212280900 + 189943524 = 200530^2 + 13782^2 .

It is a junction number, because it is equal to n+sod(n) for n = 40402224392 and 40402224401.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25000569 + ... + 25002184.

Almost surely, 2^40402224424 is an apocalyptic number.

It is an amenable number.

40402224424 is a deficient number, since it is larger than the sum of its proper divisors (36101989196).

40402224424 is a wasteful number, since it uses less digits than its factorization.

40402224424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50002860 (or 50002856 counting only the distinct ones).

The product of its (nonzero) digits is 16384, while the sum is 28.

Adding to 40402224424 its reverse (42442220404), we get a palindrome (82844444828).

The spelling of 40402224424 in words is "forty billion, four hundred two million, two hundred twenty-four thousand, four hundred twenty-four".