889426240 has 112 divisors (see below), whose sum is σ = 2168225280. Its totient is φ = 347443200.

The previous prime is 889426207. The next prime is 889426249. The reversal of 889426240 is 42624988.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (889426249) 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, 3817164 + ... + 3817396.

Almost surely, 2^889426240 is an apocalyptic number.

889426240 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

889426240 is the 14912-nd decagonal number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 889426240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1084112640).

889426240 is an abundant number, since it is smaller than the sum of its proper divisors (1278799040).

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

889426240 is a wasteful number, since it uses less digits than its factorization.

With its predecessor (889426239) it forms a Ruth-Aaron pair, since the sum of their prime factors is the same (480).

889426240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 480 (or 470 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 43.

The square root of 889426240 is about 29823.2499905694. The cubic root of 889426240 is about 961.6934231120.

The spelling of 889426240 in words is "eight hundred eighty-nine million, four hundred twenty-six thousand, two hundred forty".