1956842237 has 16 divisors (see below), whose sum is σ = 2305915392. Its totient is φ = 1625747760.

The previous prime is 1956842189. The next prime is 1956842257. The reversal of 1956842237 is 7322486591.

It is not a de Polignac number, because 1956842237 - 2¹⁰ = 1956841213 is a prime.

It is a Smith number, since the sum of its digits (47) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1956842191 and 1956842200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1956842257) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14618 + ... + 64244.

It is an arithmetic number, because the mean of its divisors is an integer number (144119712).

Almost surely, 2^1956842237 is an apocalyptic number.

It is an amenable number.

1956842237 is a deficient number, since it is larger than the sum of its proper divisors (349073155).

1956842237 is a wasteful number, since it uses less digits than its factorization.

1956842237 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49808.

The product of its digits is 725760, while the sum is 47.

The square root of 1956842237 is about 44236.2095686328. The cubic root of 1956842237 is about 1250.7925079987.

The spelling of 1956842237 in words is "one billion, nine hundred fifty-six million, eight hundred forty-two thousand, two hundred thirty-seven".