4465889280 has 156 divisors (see below), whose sum is σ = 15480498540. Its totient is φ = 1190854656.

The previous prime is 4465889261. The next prime is 4465889291. The reversal of 4465889280 is 829885644.

It can be written as a sum of positive squares in 2 ways, for example, as 991494144 + 3474395136 = 31488^2 + 58944^2 .

It is a super-2 number, since 2×4465889280² = 39888334122437836800, which contains 22 as substring.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

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, 172206 + ... + 196434.

It is an arithmetic number, because the mean of its divisors is an integer number (99233965).

Almost surely, 2^4465889280 is an apocalyptic number.

4465889280 is a gapful number since it is divisible by the number (40) 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 4465889280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7740249270).

4465889280 is an abundant number, since it is smaller than the sum of its proper divisors (11014609260).

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

4465889280 is a wasteful number, since it uses less digits than its factorization.

4465889280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24264 (or 24239 counting only the distinct ones).

The product of its (nonzero) digits is 4423680, while the sum is 54.

The square root of 4465889280 is about 66827.3093877047. The cubic root of 4465889280 is about 1646.7815167553.

The spelling of 4465889280 in words is "four billion, four hundred sixty-five million, eight hundred eighty-nine thousand, two hundred eighty".