427809020 has 24 divisors (see below), whose sum is σ = 898896768. Its totient is φ = 171028800.

The previous prime is 427808999. The next prime is 427809023. The reversal of 427809020 is 20908724.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (427809023) 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, 39605 + ... + 49235.

It is an arithmetic number, because the mean of its divisors is an integer number (37454032).

Almost surely, 2^427809020 is an apocalyptic number.

It is an amenable number.

427809020 is an abundant number, since it is smaller than the sum of its proper divisors (471087748).

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

427809020 is a wasteful number, since it uses less digits than its factorization.

427809020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11861 (or 11859 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 32.

The square root of 427809020 is about 20683.5446671986. The cubic root of 427809020 is about 753.5000966514.

The spelling of 427809020 in words is "four hundred twenty-seven million, eight hundred nine thousand, twenty".