393220882 has 4 divisors (see below), whose sum is σ = 589831326. Its totient is φ = 196610440.

The previous prime is 393220813. The next prime is 393220907. The reversal of 393220882 is 288022393.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 288022393 = 37 ⋅7784389.

It can be written as a sum of positive squares in only one way, i.e., 278923401 + 114297481 = 16701^2 + 10691^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 98305219 + ... + 98305222.

Almost surely, 2^393220882 is an apocalyptic number.

393220882 is a deficient number, since it is larger than the sum of its proper divisors (196610444).

393220882 is a wasteful number, since it uses less digits than its factorization.

393220882 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 196610443.

The product of its (nonzero) digits is 41472, while the sum is 37.

The square root of 393220882 is about 19829.7978305378. The cubic root of 393220882 is about 732.6201471741.

The spelling of 393220882 in words is "three hundred ninety-three million, two hundred twenty thousand, eight hundred eighty-two".