6442837401 has 64 divisors (see below), whose sum is σ = 11673446400. Its totient is φ = 3052131840.

The previous prime is 6442837391. The next prime is 6442837421. The reversal of 6442837401 is 1047382446.

It is not a de Polignac number, because 6442837401 - 2⁷ = 6442837273 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 6442837401.

It is not an unprimeable number, because it can be changed into a prime (6442837421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 236325 + ... + 262173.

It is an arithmetic number, because the mean of its divisors is an integer number (182397600).

Almost surely, 2^6442837401 is an apocalyptic number.

It is an amenable number.

6442837401 is a deficient number, since it is larger than the sum of its proper divisors (5230608999).

6442837401 is a wasteful number, since it uses less digits than its factorization.

6442837401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25966.

The product of its (nonzero) digits is 129024, while the sum is 39.

The square root of 6442837401 is about 80267.2872408181. The cubic root of 6442837401 is about 1860.7686922758.

The spelling of 6442837401 in words is "six billion, four hundred forty-two million, eight hundred thirty-seven thousand, four hundred one".