22073688 has 128 divisors (see below), whose sum is σ = 75532800. Its totient is φ = 5816448.

The previous prime is 22073671. The next prime is 22073713. The reversal of 22073688 is 88637022.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 19095 + ... + 20217.

It is an arithmetic number, because the mean of its divisors is an integer number (590100).

Almost surely, 2^22073688 is an apocalyptic number.

22073688 is a gapful number since it is divisible by the number (28) 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 22073688, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37766400).

22073688 is an abundant number, since it is smaller than the sum of its proper divisors (53459112).

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

22073688 is a wasteful number, since it uses less digits than its factorization.

22073688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1158 (or 1148 counting only the distinct ones).

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

The square root of 22073688 is about 4698.2643603782. The cubic root of 22073688 is about 280.5164278748.

The spelling of 22073688 in words is "twenty-two million, seventy-three thousand, six hundred eighty-eight".