1964736 has 70 divisors (see below), whose sum is σ = 5839460. Its totient is φ = 653184.

The previous prime is 1964723. The next prime is 1964773. The reversal of 1964736 is 6374691.

1964736 is a `hidden beast` number, since 1 + 9 + 647 + 3 + 6 = 666.

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

It is a self number, because there is not a number n which added to its sum of digits gives 1964736.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 4995 + ... + 5373.

2^1964736 is an apocalyptic number.

1964736 is a gapful number since it is divisible by the number (16) 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 1964736, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2919730).

1964736 is an abundant number, since it is smaller than the sum of its proper divisors (3874724).

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

1964736 is an equidigital number, since it uses as much as digits as its factorization.

1964736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 403 (or 384 counting only the distinct ones).

The product of its digits is 27216, while the sum is 36.

The square root of 1964736 is about 1401.6904080431. The cubic root of 1964736 is about 125.2472121004.

It can be divided in two parts, 19647 and 36, that added together give a 9-th power (19683 = 3⁹).

The spelling of 1964736 in words is "one million, nine hundred sixty-four thousand, seven hundred thirty-six".