22453445540 has 24 divisors (see below), whose sum is σ = 47638345272. Its totient is φ = 8888785920.

The previous prime is 22453445537. The next prime is 22453445543. The reversal of 22453445540 is 4554435422.

It is an interprime number because it is at equal distance from previous prime (22453445537) and next prime (22453445543).

It can be written as a sum of positive squares in 4 ways, for example, as 5296637284 + 17156808256 = 72778^2 + 130984^2 .

It is a junction number, because it is equal to n+sod(n) for n = 22453445494 and 22453445503.

It is not an unprimeable number, because it can be changed into a prime (22453445543) 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, 5785031 + ... + 5788910.

It is an arithmetic number, because the mean of its divisors is an integer number (1984931053).

Almost surely, 2^22453445540 is an apocalyptic number.

22453445540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22453445540 is an abundant number, since it is smaller than the sum of its proper divisors (25184899732).

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

22453445540 is a wasteful number, since it uses less digits than its factorization.

22453445540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11574047 (or 11574045 counting only the distinct ones).

The product of its (nonzero) digits is 384000, while the sum is 38.

The spelling of 22453445540 in words is "twenty-two billion, four hundred fifty-three million, four hundred forty-five thousand, five hundred forty".