22063720 has 48 divisors (see below), whose sum is σ = 57753540. Its totient is φ = 7564032.

The previous prime is 22063697. The next prime is 22063759. The reversal of 22063720 is 2736022.

It can be written as a sum of positive squares in 2 ways, for example, as 21734244 + 329476 = 4662^2 + 574^2 .

It is a junction number, because it is equal to n+sod(n) for n = 22063691 and 22063700.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3669 + ... + 7588.

Almost surely, 2^22063720 is an apocalyptic number.

22063720 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22063720 is an abundant number, since it is smaller than the sum of its proper divisors (35689820).

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

22063720 is a wasteful number, since it uses less digits than its factorization.

22063720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11282 (or 11271 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 22.

The square root of 22063720 is about 4697.2034233148. The cubic root of 22063720 is about 280.4741964670.

Adding to 22063720 its reverse (2736022), we get a palindrome (24799742).

The spelling of 22063720 in words is "twenty-two million, sixty-three thousand, seven hundred twenty".