22078680 has 64 divisors (see below), whose sum is σ = 71336160. Its totient is φ = 5434368.

The previous prime is 22078669. The next prime is 22078681. The reversal of 22078680 is 8687022.

It is a super-2 number, since 2×22078680² = 974936221084800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22078681) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5517 + ... + 8636.

Almost surely, 2^22078680 is an apocalyptic number.

22078680 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22078680 is an abundant number, since it is smaller than the sum of its proper divisors (49257480).

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

22078680 is a wasteful number, since it uses less digits than its factorization.

22078680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14180 (or 14176 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 33.

The square root of 22078680 is about 4698.7955903614. The cubic root of 22078680 is about 280.5375726945.

The spelling of 22078680 in words is "twenty-two million, seventy-eight thousand, six hundred eighty".