22047120 has 160 divisors (see below), whose sum is σ = 77673600. Its totient is φ = 5746176.

The previous prime is 22047119. The next prime is 22047121. The reversal of 22047120 is 2174022.

It is an interprime number because it is at equal distance from previous prime (22047119) and next prime (22047121).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 22047093 and 22047102.

It is not an unprimeable number, because it can be changed into a prime (22047121) 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, 127354 + ... + 127526.

It is an arithmetic number, because the mean of its divisors is an integer number (485460).

Almost surely, 2^22047120 is an apocalyptic number.

22047120 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 22047120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38836800).

22047120 is an abundant number, since it is smaller than the sum of its proper divisors (55626480).

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

22047120 is a wasteful number, since it uses less digits than its factorization.

22047120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 254 (or 242 counting only the distinct ones).

The product of its (nonzero) digits is 224, while the sum is 18.

The square root of 22047120 is about 4695.4360819843. The cubic root of 22047120 is about 280.4038390388.

The spelling of 22047120 in words is "twenty-two million, forty-seven thousand, one hundred twenty".