22542274040 has 128 divisors (see below), whose sum is σ = 63092675520. Its totient is φ = 7121510400.

The previous prime is 22542274037. The next prime is 22542274043. The reversal of 22542274040 is 4047224522.

It is an interprime number because it is at equal distance from previous prime (22542274037) and next prime (22542274043).

It is a junction number, because it is equal to n+sod(n) for n = 22542273988 and 22542274006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22542274043) 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, 18671 + ... + 213150.

Almost surely, 2^22542274040 is an apocalyptic number.

22542274040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22542274040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31546337760).

22542274040 is an abundant number, since it is smaller than the sum of its proper divisors (40550401480).

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

22542274040 is a wasteful number, since it uses less digits than its factorization.

22542274040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 231873 (or 231869 counting only the distinct ones).

The product of its (nonzero) digits is 35840, while the sum is 32.

Adding to 22542274040 its reverse (4047224522), we get a palindrome (26589498562).

The spelling of 22542274040 in words is "twenty-two billion, five hundred forty-two million, two hundred seventy-four thousand, forty".