427285280 has 24 divisors (see below), whose sum is σ = 1009461852. Its totient is φ = 170914048.

The previous prime is 427285273. The next prime is 427285321. The reversal of 427285280 is 82582724.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 393784336 + 33500944 = 19844^2 + 5788^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1335107 + ... + 1335426.

Almost surely, 2^427285280 is an apocalyptic number.

427285280 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

427285280 is an abundant number, since it is smaller than the sum of its proper divisors (582176572).

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

427285280 is a wasteful number, since it uses less digits than its factorization.

427285280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2670548 (or 2670540 counting only the distinct ones).

The product of its (nonzero) digits is 71680, while the sum is 38.

The square root of 427285280 is about 20670.8800006192. The cubic root of 427285280 is about 753.1924833041.

The spelling of 427285280 in words is "four hundred twenty-seven million, two hundred eighty-five thousand, two hundred eighty".