1922648 has 64 divisors (see below), whose sum is σ = 4704000. Its totient is φ = 715392.

The previous prime is 1922621. The next prime is 1922663. The reversal of 1922648 is 8462291.

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 15 ways as a sum of consecutive naturals, for example, 13763 + ... + 13901.

It is an arithmetic number, because the mean of its divisors is an integer number (73500).

2^1922648 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1922648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2352000).

1922648 is an abundant number, since it is smaller than the sum of its proper divisors (2781352).

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

1922648 is a wasteful number, since it uses less digits than its factorization.

1922648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 184 (or 180 counting only the distinct ones).

The product of its digits is 6912, while the sum is 32.

The square root of 1922648 is about 1386.5958315241. The cubic root of 1922648 is about 124.3464125437.

It can be divided in two parts, 1922 and 648, that multiplied together give a square (1245456 = 1116²).

The spelling of 1922648 in words is "one million, nine hundred twenty-two thousand, six hundred forty-eight".