1964441 has 4 divisors (see below), whose sum is σ = 2017572. Its totient is φ = 1911312.

The previous prime is 1964437. The next prime is 1964447. The reversal of 1964441 is 1444691.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1444691 = 569 ⋅2539.

It can be written as a sum of positive squares in 2 ways, for example, as 1638400 + 326041 = 1280^2 + 571^2 .

It is a cyclic number.

It is not a de Polignac number, because 1964441 - 2² = 1964437 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1964447) 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, 26510 + ... + 26583.

It is an arithmetic number, because the mean of its divisors is an integer number (504393).

2^1964441 is an apocalyptic number.

It is an amenable number.

1964441 is a deficient number, since it is larger than the sum of its proper divisors (53131).

1964441 is an equidigital number, since it uses as much as digits as its factorization.

1964441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53130.

The product of its digits is 3456, while the sum is 29.

The square root of 1964441 is about 1401.5851740083. The cubic root of 1964441 is about 125.2409432723.

The spelling of 1964441 in words is "one million, nine hundred sixty-four thousand, four hundred forty-one".