397802282 has 8 divisors (see below), whose sum is σ = 597425700. Its totient is φ = 198660384.

The previous prime is 397802263. The next prime is 397802287. The reversal of 397802282 is 282208793.

It can be written as a sum of positive squares in 2 ways, for example, as 395174641 + 2627641 = 19879^2 + 1621^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (397802287) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 118307 + ... + 121622.

Almost surely, 2^397802282 is an apocalyptic number.

397802282 is a deficient number, since it is larger than the sum of its proper divisors (199623418).

397802282 is a wasteful number, since it uses less digits than its factorization.

397802282 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 240760.

The product of its (nonzero) digits is 96768, while the sum is 41.

The square root of 397802282 is about 19944.9813737692. The cubic root of 397802282 is about 735.4544104144.

The spelling of 397802282 in words is "three hundred ninety-seven million, eight hundred two thousand, two hundred eighty-two".