163384920 has 48 divisors (see below), whose sum is σ = 531002160. Its totient is φ = 43569216.

The previous prime is 163384873. The next prime is 163384931. The reversal of 163384920 is 29483361.

163384920 is a `hidden beast` number, since 163 + 3 + 8 + 492 + 0 = 666.

163384920 is digitally balanced in base 2 and base 3, because in such bases 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 polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 226564 + ... + 227283.

It is an arithmetic number, because the mean of its divisors is an integer number (11062545).

Almost surely, 2^163384920 is an apocalyptic number.

163384920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

163384920 is an abundant number, since it is smaller than the sum of its proper divisors (367617240).

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

163384920 is a wasteful number, since it uses less digits than its factorization.

163384920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 453864 (or 453857 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 36.

The square root of 163384920 is about 12782.2110763357. The cubic root of 163384920 is about 546.6852082415.

The spelling of 163384920 in words is "one hundred sixty-three million, three hundred eighty-four thousand, nine hundred twenty".