1952639841 has 4 divisors (see below), whose sum is σ = 2603519792. Its totient is φ = 1301759892.

The previous prime is 1952639837. The next prime is 1952639867. The reversal of 1952639841 is 1489362591.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 1952639841 - 2² = 1952639837 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1952639831) 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, 325439971 + ... + 325439976.

It is an arithmetic number, because the mean of its divisors is an integer number (650879948).

Almost surely, 2^1952639841 is an apocalyptic number.

It is an amenable number.

1952639841 is a deficient number, since it is larger than the sum of its proper divisors (650879951).

1952639841 is an equidigital number, since it uses as much as digits as its factorization.

1952639841 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 650879950.

The product of its digits is 466560, while the sum is 48.

The square root of 1952639841 is about 44188.6845357496. The cubic root of 1952639841 is about 1249.8964908423.

The spelling of 1952639841 in words is "one billion, nine hundred fifty-two million, six hundred thirty-nine thousand, eight hundred forty-one".