422115342453540 has 72 divisors (see below), whose sum is σ = 1280689493061888. Its totient is φ = 112540095339840.

The previous prime is 422115342453521. The next prime is 422115342453547. The reversal of 422115342453540 is 45354243511224.

422115342453540 is a `hidden beast` number, since 4 + 2 + 2 + 1 + 1 + 5 + 34 + 24 + 53 + 540 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (422115342453547) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 249111412 + ... + 250800171.

It is an arithmetic number, because the mean of its divisors is an integer number (17787354070304).

Almost surely, 2^{422115342453540} is an apocalyptic number.

It is an amenable number.

422115342453540 is an abundant number, since it is smaller than the sum of its proper divisors (858574150608348).

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

422115342453540 is a wasteful number, since it uses less digits than its factorization.

422115342453540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 499916289 (or 499916284 counting only the distinct ones).

The product of its (nonzero) digits is 2304000, while the sum is 45.

Adding to 422115342453540 its reverse (45354243511224), we get a palindrome (467469585964764).

The spelling of 422115342453540 in words is "four hundred twenty-two trillion, one hundred fifteen billion, three hundred forty-two million, four hundred fifty-three thousand, five hundred forty".