163734480 has 640 divisors, whose sum is σ = 749952000. Its totient is φ = 32514048.

The previous prime is 163734479. The next prime is 163734491. The reversal of 163734480 is 84437361.

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 127 ways as a sum of consecutive naturals, for example, 9631432 + ... + 9631448.

It is an arithmetic number, because the mean of its divisors is an integer number (1171800).

Almost surely, 2^163734480 is an apocalyptic number.

163734480 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 163734480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (374976000).

163734480 is an abundant number, since it is smaller than the sum of its proper divisors (586217520).

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

163734480 is a wasteful number, since it uses less digits than its factorization.

163734480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73 (or 47 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 36.

The square root of 163734480 is about 12795.8774611200. The cubic root of 163734480 is about 547.0748059235.

The spelling of 163734480 in words is "one hundred sixty-three million, seven hundred thirty-four thousand, four hundred eighty".