163934472 has 32 divisors (see below), whose sum is σ = 441362880. Its totient is φ = 50441280.

The previous prime is 163934471. The next prime is 163934473. The reversal of 163934472 is 274439361.

It is an interprime number because it is at equal distance from previous prime (163934471) and next prime (163934473).

It is a super-2 number, since 2×163934472² = 53749022219837568, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a self number, because there is not a number n which added to its sum of digits gives 163934472.

It is not an unprimeable number, because it can be changed into a prime (163934471) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 262404 + ... + 263027.

It is an arithmetic number, because the mean of its divisors is an integer number (13792590).

Almost surely, 2^163934472 is an apocalyptic number.

163934472 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

163934472 is an abundant number, since it is smaller than the sum of its proper divisors (277428408).

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

163934472 is a wasteful number, since it uses less digits than its factorization.

163934472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 525453 (or 525449 counting only the distinct ones).

The product of its digits is 108864, while the sum is 39.

The square root of 163934472 is about 12803.6897806843. The cubic root of 163934472 is about 547.2974551553.

The spelling of 163934472 in words is "one hundred sixty-three million, nine hundred thirty-four thousand, four hundred seventy-two".