396223892 has 6 divisors (see below), whose sum is σ = 693391818. Its totient is φ = 198111944.

The previous prime is 396223873. The next prime is 396223901. The reversal of 396223892 is 298322693.

It can be written as a sum of positive squares in only one way, i.e., 390299536 + 5924356 = 19756^2 + 2434^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49527983 + ... + 49527990.

It is an arithmetic number, because the mean of its divisors is an integer number (115565303).

Almost surely, 2^396223892 is an apocalyptic number.

It is an amenable number.

396223892 is a deficient number, since it is larger than the sum of its proper divisors (297167926).

396223892 is a wasteful number, since it uses less digits than its factorization.

396223892 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99055977 (or 99055975 counting only the distinct ones).

The product of its digits is 279936, while the sum is 44.

The square root of 396223892 is about 19905.3734453790. The cubic root of 396223892 is about 734.4804151727.

The spelling of 396223892 in words is "three hundred ninety-six million, two hundred twenty-three thousand, eight hundred ninety-two".