427408578 has 48 divisors (see below), whose sum is σ = 951173496. Its totient is φ = 138654720.

The previous prime is 427408529. The next prime is 427408603. The reversal of 427408578 is 875804724.

427408578 is a `hidden beast` number, since 4 + 2 + 74 + 0 + 8 + 578 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 316590849 + 110817729 = 17793^2 + 10527^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 104500 + ... + 108512.

Almost surely, 2^427408578 is an apocalyptic number.

427408578 is an abundant number, since it is smaller than the sum of its proper divisors (523764918).

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

427408578 is a wasteful number, since it uses less digits than its factorization.

427408578 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4179 (or 4176 counting only the distinct ones).

The product of its (nonzero) digits is 501760, while the sum is 45.

The square root of 427408578 is about 20673.8621936009. The cubic root of 427408578 is about 753.2649237398.

The spelling of 427408578 in words is "four hundred twenty-seven million, four hundred eight thousand, five hundred seventy-eight".