22151648 has 12 divisors (see below), whose sum is σ = 43611120. Its totient is φ = 11075808.

The previous prime is 22151627. The next prime is 22151651. The reversal of 22151648 is 84615122.

It is a self number, because there is not a number n which added to its sum of digits gives 22151648.

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, 346088 + ... + 346151.

It is an arithmetic number, because the mean of its divisors is an integer number (3634260).

Almost surely, 2^22151648 is an apocalyptic number.

It is an amenable number.

22151648 is a deficient number, since it is larger than the sum of its proper divisors (21459472).

22151648 is an equidigital number, since it uses as much as digits as its factorization.

22151648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 692249 (or 692241 counting only the distinct ones).

The product of its digits is 3840, while the sum is 29.

The square root of 22151648 is about 4706.5537285789. The cubic root of 22151648 is about 280.8462831207.

The spelling of 22151648 in words is "twenty-two million, one hundred fifty-one thousand, six hundred forty-eight".