22149916 has 6 divisors (see below), whose sum is σ = 38762360. Its totient is φ = 11074956.

The previous prime is 22149901. The next prime is 22149923. The reversal of 22149916 is 61994122.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2768736 + ... + 2768743.

Almost surely, 2^22149916 is an apocalyptic number.

It is an amenable number.

22149916 is a deficient number, since it is larger than the sum of its proper divisors (16612444).

22149916 is a wasteful number, since it uses less digits than its factorization.

22149916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5537483 (or 5537481 counting only the distinct ones).

The product of its digits is 7776, while the sum is 34.

The square root of 22149916 is about 4706.3697262327. The cubic root of 22149916 is about 280.8389632975.

The spelling of 22149916 in words is "twenty-two million, one hundred forty-nine thousand, nine hundred sixteen".