289686228040 has 64 divisors (see below), whose sum is σ = 711468360000. Its totient is φ = 105278173440.

The previous prime is 289686228031. The next prime is 289686228043. The reversal of 289686228040 is 40822686982.

It is a super-2 number, since 2×289686228040² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (55).

It is not an unprimeable number, because it can be changed into a prime (289686228043) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 553806 + ... + 941314.

It is an arithmetic number, because the mean of its divisors is an integer number (11116693125).

Almost surely, 2^289686228040 is an apocalyptic number.

289686228040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

289686228040 is an abundant number, since it is smaller than the sum of its proper divisors (421782131960).

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

289686228040 is a wasteful number, since it uses less digits than its factorization.

289686228040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 389230 (or 389226 counting only the distinct ones).

The product of its (nonzero) digits is 5308416, while the sum is 55.

The spelling of 289686228040 in words is "two hundred eighty-nine billion, six hundred eighty-six million, two hundred twenty-eight thousand, forty".