1964808 has 48 divisors (see below), whose sum is σ = 5510700. Its totient is φ = 631680.

The previous prime is 1964801. The next prime is 1964813. The reversal of 1964808 is 8084691.

It is a happy number.

1964808 is a `hidden beast` number, since 1 + 9 + 648 + 0 + 8 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 1954404 + 10404 = 1398^2 + 102^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (1964801) 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, 1618 + ... + 2558.

2^1964808 is an apocalyptic number.

1964808 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 1964808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2755350).

1964808 is an abundant number, since it is smaller than the sum of its proper divisors (3545892).

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

1964808 is a wasteful number, since it uses less digits than its factorization.

1964808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 982 (or 975 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 36.

The square root of 1964808 is about 1401.7160910826. The cubic root of 1964808 is about 125.2487420242.

It can be divided in two parts, 1964 and 808, that added together give a palindrome (2772).

The spelling of 1964808 in words is "one million, nine hundred sixty-four thousand, eight hundred eight".