6427944 has 32 divisors (see below), whose sum is σ = 17856000. Its totient is φ = 2142576.

The previous prime is 6427931. The next prime is 6427951. The reversal of 6427944 is 4497246.

6427944 is a `hidden beast` number, since 642 + 7 + 9 + 4 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 6427899 and 6427908.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14664 + ... + 15095.

It is an arithmetic number, because the mean of its divisors is an integer number (558000).

Almost surely, 2^6427944 is an apocalyptic number.

It is an amenable number.

6427944 is an abundant number, since it is smaller than the sum of its proper divisors (11428056).

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

6427944 is a wasteful number, since it uses less digits than its factorization.

6427944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29774 (or 29764 counting only the distinct ones).

The product of its digits is 48384, while the sum is 36.

The square root of 6427944 is about 2535.3390305835. The cubic root of 6427944 is about 185.9333788461.

The spelling of 6427944 in words is "six million, four hundred twenty-seven thousand, nine hundred forty-four".