164463280 has 40 divisors (see below), whose sum is σ = 385970832. Its totient is φ = 65167104.

The previous prime is 164463241. The next prime is 164463289. The reversal of 164463280 is 82364461.

It is a tau number, because it is divible by the number of its divisors (40).

It is not an unprimeable number, because it can be changed into a prime (164463289) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1047 + ... + 18166.

Almost surely, 2^164463280 is an apocalyptic number.

164463280 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 164463280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (192985416).

164463280 is an abundant number, since it is smaller than the sum of its proper divisors (221507552).

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

164463280 is a wasteful number, since it uses less digits than its factorization.

164463280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19333 (or 19327 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 34.

The square root of 164463280 is about 12824.3237638481. The cubic root of 164463280 is about 547.8853010875.

The spelling of 164463280 in words is "one hundred sixty-four million, four hundred sixty-three thousand, two hundred eighty".