402211040040 has 48 divisors (see below), whose sum is σ = 1307185881300. Its totient is φ = 107256277248.

The previous prime is 402211040009. The next prime is 402211040051. The reversal of 402211040040 is 40040112204.

402211040040 is a `hidden beast` number, since 4 + 0 + 221 + 1 + 0 + 400 + 40 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 366966985284 + 35244054756 = 605778^2 + 187734^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 402211039995 and 402211040022.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 558626085 + ... + 558626804.

Almost surely, 2^402211040040 is an apocalyptic number.

402211040040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

402211040040 is an abundant number, since it is smaller than the sum of its proper divisors (904974841260).

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

402211040040 is a wasteful number, since it uses less digits than its factorization.

402211040040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1117252906 (or 1117252899 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

Adding to 402211040040 its reverse (40040112204), we get a palindrome (442251152244).

The spelling of 402211040040 in words is "four hundred two billion, two hundred eleven million, forty thousand, forty".