427920 has 40 divisors (see below), whose sum is σ = 1327296. Its totient is φ = 114048.

The previous prime is 427919. The next prime is 427939. The reversal of 427920 is 29724.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (24).

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, 652 + ... + 1131.

2⁴²⁷⁹²⁰ is an apocalyptic number.

427920 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

427920 is an abundant number, since it is smaller than the sum of its proper divisors (899376).

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

427920 is a wasteful number, since it uses less digits than its factorization.

427920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1799 (or 1793 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 24.

The square root of 427920 is about 654.1559447104. The cubic root of 427920 is about 75.3565247382.

The spelling of 427920 in words is "four hundred twenty-seven thousand, nine hundred twenty".