22240551540 has 48 divisors (see below), whose sum is σ = 62287682688. Its totient is φ = 5929467264.

The previous prime is 22240551511. The next prime is 22240551583. The reversal of 22240551540 is 4515504222.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 22240551498 and 22240551507.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 240034 + ... + 319526.

It is an arithmetic number, because the mean of its divisors is an integer number (1297660056).

Almost surely, 2^22240551540 is an apocalyptic number.

22240551540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22240551540 is an abundant number, since it is smaller than the sum of its proper divisors (40047131148).

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

22240551540 is a wasteful number, since it uses less digits than its factorization.

22240551540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84168 (or 84166 counting only the distinct ones).

The product of its (nonzero) digits is 16000, while the sum is 30.

The spelling of 22240551540 in words is "twenty-two billion, two hundred forty million, five hundred fifty-one thousand, five hundred forty".