1964262401 has 4 divisors (see below), whose sum is σ = 2017350612. Its totient is φ = 1911174192.

The previous prime is 1964262371. The next prime is 1964262439. The reversal of 1964262401 is 1042624691.

It is a Cunningham number, because it is equal to 44320²+1.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1757621776 + 206640625 = 41924^2 + 14375^2 .

It is a cyclic number.

It is not a de Polignac number, because 1964262401 - 2⁶ = 1964262337 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1964262101) 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, 26544050 + ... + 26544123.

It is an arithmetic number, because the mean of its divisors is an integer number (504337653).

Almost surely, 2^1964262401 is an apocalyptic number.

It is an amenable number.

1964262401 is a deficient number, since it is larger than the sum of its proper divisors (53088211).

1964262401 is an equidigital number, since it uses as much as digits as its factorization.

1964262401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53088210.

The product of its (nonzero) digits is 20736, while the sum is 35.

The square root of 1964262401 is about 44320.0000112816. Note that the first 4 decimals coincide. The cubic root of 1964262401 is about 1252.3714769126.

The spelling of 1964262401 in words is "one billion, nine hundred sixty-four million, two hundred sixty-two thousand, four hundred one".