289915467220 has 24 divisors (see below), whose sum is σ = 610577027424. Its totient is φ = 115631987616.

The previous prime is 289915467217. The next prime is 289915467251. The reversal of 289915467220 is 22764519982.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20880342 + ... + 20894221.

It is an arithmetic number, because the mean of its divisors is an integer number (25440709476).

Almost surely, 2^289915467220 is an apocalyptic number.

289915467220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

289915467220 is an abundant number, since it is smaller than the sum of its proper divisors (320661560204).

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

289915467220 is a wasteful number, since it uses less digits than its factorization.

289915467220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41774919 (or 41774917 counting only the distinct ones).

The product of its (nonzero) digits is 4354560, while the sum is 55.

The spelling of 289915467220 in words is "two hundred eighty-nine billion, nine hundred fifteen million, four hundred sixty-seven thousand, two hundred twenty".