22351448 has 48 divisors (see below), whose sum is σ = 51334200. Its totient is φ = 9072000.

The previous prime is 22351411. The next prime is 22351453. The reversal of 22351448 is 84415322.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 22351448.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 5948 + ... + 8948.

Almost surely, 2^22351448 is an apocalyptic number.

22351448 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22351448, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25667100).

22351448 is an abundant number, since it is smaller than the sum of its proper divisors (28982752).

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

22351448 is a wasteful number, since it uses less digits than its factorization.

22351448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3040 (or 3029 counting only the distinct ones).

The product of its digits is 7680, while the sum is 29.

The square root of 22351448 is about 4727.7318028839. The cubic root of 22351448 is about 281.6881350224.

The spelling of 22351448 in words is "twenty-two million, three hundred fifty-one thousand, four hundred forty-eight".