427815980 has 24 divisors (see below), whose sum is σ = 900398688. Its totient is φ = 170748288.

The previous prime is 427815977. The next prime is 427816003. The reversal of 427815980 is 89518724.

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, 14264 + ... + 32543.

It is an arithmetic number, because the mean of its divisors is an integer number (37516612).

Almost surely, 2^427815980 is an apocalyptic number.

It is an amenable number.

427815980 is an abundant number, since it is smaller than the sum of its proper divisors (472582708).

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

427815980 is a wasteful number, since it uses less digits than its factorization.

427815980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47273 (or 47271 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 44.

The square root of 427815980 is about 20683.7129162053. The cubic root of 427815980 is about 753.5041828456.

The spelling of 427815980 in words is "four hundred twenty-seven million, eight hundred fifteen thousand, nine hundred eighty".