1622448 has 60 divisors (see below), whose sum is σ = 4787640. Its totient is φ = 511488.

The previous prime is 1622437. The next prime is 1622449. The reversal of 1622448 is 8442261.

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (1622449) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2440 + ... + 3032.

It is an arithmetic number, because the mean of its divisors is an integer number (79794).

2^1622448 is an apocalyptic number.

1622448 is a gapful number since it is divisible by the number (18) 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 1622448, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2393820).

1622448 is an abundant number, since it is smaller than the sum of its proper divisors (3165192).

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

1622448 is a wasteful number, since it uses less digits than its factorization.

1622448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 626 (or 617 counting only the distinct ones).

The product of its digits is 3072, while the sum is 27.

The square root of 1622448 is about 1273.7535083367. The cubic root of 1622448 is about 117.5051574619.

The spelling of 1622448 in words is "one million, six hundred twenty-two thousand, four hundred forty-eight".