22821163740 has 72 divisors (see below), whose sum is σ = 70058269008. Its totient is φ = 6012318720.

The previous prime is 22821163727. The next prime is 22821163751. The reversal of 22821163740 is 4736112822.

It is a happy number.

22821163740 is a `hidden beast` number, since 2 + 2 + 8 + 2 + 11 + 637 + 4 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 22821163695 and 22821163704.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 748821 + ... + 778700.

It is an arithmetic number, because the mean of its divisors is an integer number (973031514).

Almost surely, 2^22821163740 is an apocalyptic number.

22821163740 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22821163740 is an abundant number, since it is smaller than the sum of its proper divisors (47237105268).

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

22821163740 is a wasteful number, since it uses less digits than its factorization.

22821163740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1527619 (or 1527614 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 36.

The spelling of 22821163740 in words is "twenty-two billion, eight hundred twenty-one million, one hundred sixty-three thousand, seven hundred forty".