1628448 has 24 divisors (see below), whose sum is σ = 4274928. Its totient is φ = 542784.

The previous prime is 1628441. The next prime is 1628467. The reversal of 1628448 is 8448261.

It is a tau number, because it is divible by the number of its divisors (24).

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 (1628441) 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, 8386 + ... + 8577.

It is an arithmetic number, because the mean of its divisors is an integer number (178122).

2^1628448 is an apocalyptic number.

It is an amenable number.

1628448 is an abundant number, since it is smaller than the sum of its proper divisors (2646480).

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

1628448 is a wasteful number, since it uses less digits than its factorization.

1628448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16976 (or 16968 counting only the distinct ones).

The product of its digits is 12288, while the sum is 33.

The square root of 1628448 is about 1276.1065786211. The cubic root of 1628448 is about 117.6498284838.

The spelling of 1628448 in words is "one million, six hundred twenty-eight thousand, four hundred forty-eight".