6444142260 has 24 divisors (see below), whose sum is σ = 18043598496. Its totient is φ = 1718437920.

The previous prime is 6444142249. The next prime is 6444142261. The reversal of 6444142260 is 622414446.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6444142261) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53701126 + ... + 53701245.

It is an arithmetic number, because the mean of its divisors is an integer number (751816604).

Almost surely, 2^6444142260 is an apocalyptic number.

6444142260 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

6444142260 is an abundant number, since it is smaller than the sum of its proper divisors (11599456236).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6444142260 is a wasteful number, since it uses less digits than its factorization.

6444142260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107402383 (or 107402381 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 33.

The square root of 6444142260 is about 80275.4150409700. The cubic root of 6444142260 is about 1860.8943034378.

The spelling of 6444142260 in words is "six billion, four hundred forty-four million, one hundred forty-two thousand, two hundred sixty".