396516992 has 16 divisors (see below), whose sum is σ = 789936450. Its totient is φ = 198258432.

The previous prime is 396516973. The next prime is 396516997. The reversal of 396516992 is 299615693.

It can be written as a sum of positive squares in only one way, i.e., 217385536 + 179131456 = 14744^2 + 13384^2 .

It is a tau number, because it is divible by the number of its divisors (16).

It is a self number, because there is not a number n which added to its sum of digits gives 396516992.

It is not an unprimeable number, because it can be changed into a prime (396516997) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1548767 + ... + 1549022.

Almost surely, 2^396516992 is an apocalyptic number.

396516992 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

396516992 is a deficient number, since it is larger than the sum of its proper divisors (393419458).

396516992 is an equidigital number, since it uses as much as digits as its factorization.

396516992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3097803 (or 3097791 counting only the distinct ones).

The product of its digits is 787320, while the sum is 50.

The square root of 396516992 is about 19912.7344179548. The cubic root of 396516992 is about 734.6614770702.

The spelling of 396516992 in words is "three hundred ninety-six million, five hundred sixteen thousand, nine hundred ninety-two".