396281998 has 16 divisors (see below), whose sum is σ = 679893984. Its totient is φ = 169696800.

The previous prime is 396281989. The next prime is 396281999. The reversal of 396281998 is 899182693.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (396281999) 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, 7336 + ... + 29092.

It is an arithmetic number, because the mean of its divisors is an integer number (42493374).

Almost surely, 2^396281998 is an apocalyptic number.

396281998 is a deficient number, since it is larger than the sum of its proper divisors (283611986).

396281998 is a wasteful number, since it uses less digits than its factorization.

396281998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23067.

The product of its digits is 1679616, while the sum is 55.

The square root of 396281998 is about 19906.8329475082. The cubic root of 396281998 is about 734.5163171242.

The spelling of 396281998 in words is "three hundred ninety-six million, two hundred eighty-one thousand, nine hundred ninety-eight".