163649304 has 96 divisors (see below), whose sum is σ = 545519520. Its totient is φ = 43158528.

The previous prime is 163649281. The next prime is 163649351. The reversal of 163649304 is 403946361.

163649304 is a `hidden beast` number, since 1 + 6 + 3 + 649 + 3 + 0 + 4 = 666.

163649304 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5937 + ... + 19040.

It is an arithmetic number, because the mean of its divisors is an integer number (5682495).

Almost surely, 2^163649304 is an apocalyptic number.

163649304 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

163649304 is an abundant number, since it is smaller than the sum of its proper divisors (381870216).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

163649304 is a wasteful number, since it uses less digits than its factorization.

163649304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25009 (or 25002 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 36.

The square root of 163649304 is about 12792.5487687169. The cubic root of 163649304 is about 546.9799252236.

The spelling of 163649304 in words is "one hundred sixty-three million, six hundred forty-nine thousand, three hundred four".