452222273440 has 48 divisors (see below), whose sum is σ = 1221000141312. Its totient is φ = 155047636224.

The previous prime is 452222273429. The next prime is 452222273449. The reversal of 452222273440 is 44372222254.

It is a self number, because there is not a number n which added to its sum of digits gives 452222273440.

It is not an unprimeable number, because it can be changed into a prime (452222273449) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 201883824 + ... + 201886063.

It is an arithmetic number, because the mean of its divisors is an integer number (25437502944).

Almost surely, 2^452222273440 is an apocalyptic number.

452222273440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

452222273440 is an abundant number, since it is smaller than the sum of its proper divisors (768777867872).

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

452222273440 is a wasteful number, since it uses less digits than its factorization.

452222273440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 403769909 (or 403769901 counting only the distinct ones).

The product of its (nonzero) digits is 215040, while the sum is 37.

Adding to 452222273440 its reverse (44372222254), we get a palindrome (496594495694).

The spelling of 452222273440 in words is "four hundred fifty-two billion, two hundred twenty-two million, two hundred seventy-three thousand, four hundred forty".