163930284 has 72 divisors (see below), whose sum is σ = 494408880. Its totient is φ = 46835712.

The previous prime is 163930279. The next prime is 163930289. The reversal of 163930284 is 482039361.

It is an interprime number because it is at equal distance from previous prime (163930279) and next prime (163930289).

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

It is not an unprimeable number, because it can be changed into a prime (163930289) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10197 + ... + 20780.

It is an arithmetic number, because the mean of its divisors is an integer number (6866790).

Almost surely, 2^163930284 is an apocalyptic number.

163930284 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

163930284 is an abundant number, since it is smaller than the sum of its proper divisors (330478596).

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

163930284 is a wasteful number, since it uses less digits than its factorization.

163930284 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31004 (or 30989 counting only the distinct ones).

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

The square root of 163930284 is about 12803.5262330344. The cubic root of 163930284 is about 547.2927945507.

The spelling of 163930284 in words is "one hundred sixty-three million, nine hundred thirty thousand, two hundred eighty-four".