22061072 has 40 divisors (see below), whose sum is σ = 46976160. Its totient is φ = 9953280.

The previous prime is 22061069. The next prime is 22061113. The reversal of 22061072 is 27016022.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28304 + ... + 29072.

It is an arithmetic number, because the mean of its divisors is an integer number (1174404).

Almost surely, 2^22061072 is an apocalyptic number.

22061072 is a gapful number since it is divisible by the number (22) 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 22061072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23488080).

22061072 is an abundant number, since it is smaller than the sum of its proper divisors (24915088).

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

22061072 is a wasteful number, since it uses less digits than its factorization.

22061072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 951 (or 945 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 20.

The square root of 22061072 is about 4696.9215450122. The cubic root of 22061072 is about 280.4629755520.

Adding to 22061072 its reverse (27016022), we get a palindrome (49077094).

The spelling of 22061072 in words is "twenty-two million, sixty-one thousand, seventy-two".