1964844 has 96 divisors (see below), whose sum is σ = 6128640. Its totient is φ = 532224.

The previous prime is 1964827. The next prime is 1964849. The reversal of 1964844 is 4484691.

It is a happy number.

1964844 is a `hidden beast` number, since 1 + 9 + 648 + 4 + 4 = 666.

It is a super-2 number, since 2×1964844² = 7721223888672, which contains 22 as substring.

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

It is a junction number, because it is equal to n+sod(n) for n = 1964799 and 1964808.

It is not an unprimeable number, because it can be changed into a prime (1964849) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 17332 + ... + 17444.

It is an arithmetic number, because the mean of its divisors is an integer number (63840).

2^1964844 is an apocalyptic number.

1964844 is a gapful number since it is divisible by the number (14) 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 1964844, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3064320).

1964844 is an abundant number, since it is smaller than the sum of its proper divisors (4163796).

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

1964844 is a wasteful number, since it uses less digits than its factorization.

1964844 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156 (or 148 counting only the distinct ones).

The product of its digits is 27648, while the sum is 36.

The square root of 1964844 is about 1401.7289324260. The cubic root of 1964844 is about 125.2495069721.

The spelling of 1964844 in words is "one million, nine hundred sixty-four thousand, eight hundred forty-four".