22077916 has 12 divisors (see below), whose sum is σ = 44155888. Its totient is φ = 9461952.

The previous prime is 22077899. The next prime is 22077919. The reversal of 22077916 is 61977022.

22077916 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22077919) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 394221 + ... + 394276.

Almost surely, 2^22077916 is an apocalyptic number.

It is an amenable number.

22077916 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

22077916 is a wasteful number, since it uses less digits than its factorization.

22077916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 788508 (or 788506 counting only the distinct ones).

The product of its (nonzero) digits is 10584, while the sum is 34.

The square root of 22077916 is about 4698.7142922293. The cubic root of 22077916 is about 280.5343367949.

The spelling of 22077916 in words is "twenty-two million, seventy-seven thousand, nine hundred sixteen".