427207560 has 128 divisors (see below), whose sum is σ = 1406522880. Its totient is φ = 103154688.

The previous prime is 427207549. The next prime is 427207591. The reversal of 427207560 is 65702724.

It is a Cunningham number, because it is equal to 20669²-1.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 80097 + ... + 85263.

It is an arithmetic number, because the mean of its divisors is an integer number (10988460).

Almost surely, 2^427207560 is an apocalyptic number.

427207560 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 427207560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (703261440).

427207560 is an abundant number, since it is smaller than the sum of its proper divisors (979315320).

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

427207560 is a wasteful number, since it uses less digits than its factorization.

427207560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5247 (or 5243 counting only the distinct ones).

The product of its (nonzero) digits is 23520, while the sum is 33.

The square root of 427207560 is about 20668.9999758092. Note that the first 4 decimals coincide. The cubic root of 427207560 is about 753.1468138399.

The spelling of 427207560 in words is "four hundred twenty-seven million, two hundred seven thousand, five hundred sixty".