395434280 has 32 divisors (see below), whose sum is σ = 942065640. Its totient is φ = 148869120.

The previous prime is 395434279. The next prime is 395434283. The reversal of 395434280 is 82434593.

It can be written as a sum of positive squares in 4 ways, for example, as 324504196 + 70930084 = 18014^2 + 8422^2 .

It is not an unprimeable number, because it can be changed into a prime (395434283) 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, 290081 + ... + 291440.

Almost surely, 2^395434280 is an apocalyptic number.

It is an amenable number.

395434280 is an abundant number, since it is smaller than the sum of its proper divisors (546631360).

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

395434280 is a wasteful number, since it uses less digits than its factorization.

395434280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 581549 (or 581545 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 38.

The square root of 395434280 is about 19885.5294121127. The cubic root of 395434280 is about 733.9921893310.

The spelling of 395434280 in words is "three hundred ninety-five million, four hundred thirty-four thousand, two hundred eighty".