427944 has 32 divisors (see below), whose sum is σ = 1167840. Its totient is φ = 129600.

The previous prime is 427939. The next prime is 427949. The reversal of 427944 is 449724.

It is an interprime number because it is at equal distance from previous prime (427939) and next prime (427949).

It is not an unprimeable number, because it can be changed into a prime (427949) by changing a digit.

427944 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 547 + ... + 1074.

It is an arithmetic number, because the mean of its divisors is an integer number (36495).

2⁴²⁷⁹⁴⁴ is an apocalyptic number.

427944 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

427944 is an abundant number, since it is smaller than the sum of its proper divisors (739896).

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

427944 is a wasteful number, since it uses less digits than its factorization.

427944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1641 (or 1637 counting only the distinct ones).

The product of its digits is 8064, while the sum is 30.

The square root of 427944 is about 654.1742887029. The cubic root of 427944 is about 75.3579335084.

The spelling of 427944 in words is "four hundred twenty-seven thousand, nine hundred forty-four".