402205424105540 has 96 divisors (see below), whose sum is σ = 923109989953536. Its totient is φ = 145987800647040.

The previous prime is 402205424105437. The next prime is 402205424105543. The reversal of 402205424105540 is 45501424502204.

It is a junction number, because it is equal to n+sod(n) for n = 402205424105494 and 402205424105503.

It is not an unprimeable number, because it can be changed into a prime (402205424105543) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 402648749 + ... + 403646411.

It is an arithmetic number, because the mean of its divisors is an integer number (9615729062016).

Almost surely, 2^{402205424105540} is an apocalyptic number.

It is an amenable number.

402205424105540 is an abundant number, since it is smaller than the sum of its proper divisors (520904565847996).

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

402205424105540 is a wasteful number, since it uses less digits than its factorization.

402205424105540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1001049 (or 1001047 counting only the distinct ones).

The product of its (nonzero) digits is 256000, while the sum is 38.

Adding to 402205424105540 its reverse (45501424502204), we get a palindrome (447706848607744).

The spelling of 402205424105540 in words is "four hundred two trillion, two hundred five billion, four hundred twenty-four million, one hundred five thousand, five hundred forty".