22273352240 has 40 divisors (see below), whose sum is σ = 52298291088. Its totient is φ = 8821126400.

The previous prime is 22273352219. The next prime is 22273352249. The reversal of 22273352240 is 4225337222.

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×22273352240² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 22273352197 and 22273352206.

It is not an unprimeable number, because it can be changed into a prime (22273352249) 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, 1370222 + ... + 1386381.

Almost surely, 2^22273352240 is an apocalyptic number.

22273352240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22273352240 is an abundant number, since it is smaller than the sum of its proper divisors (30024938848).

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

22273352240 is a wasteful number, since it uses less digits than its factorization.

22273352240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2756717 (or 2756711 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 32.

Adding to 22273352240 its reverse (4225337222), we get a palindrome (26498689462).

The spelling of 22273352240 in words is "twenty-two billion, two hundred seventy-three million, three hundred fifty-two thousand, two hundred forty".