1009880256 has 224 divisors, whose sum is σ = 3375525888. Its totient is φ = 258831360.

The previous prime is 1009880239. The next prime is 1009880279. The reversal of 1009880256 is 6520889001.

It is a tau number, because it is divible by the number of its divisors (224).

It is a zygodrome in base 2.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1226661 + ... + 1227483.

It is an arithmetic number, because the mean of its divisors is an integer number (15069312).

Almost surely, 2^1009880256 is an apocalyptic number.

1009880256 is a gapful number since it is divisible by the number (16) 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 1009880256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1687762944).

1009880256 is an abundant number, since it is smaller than the sum of its proper divisors (2365645632).

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

1009880256 is a wasteful number, since it uses less digits than its factorization.

1009880256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 939 (or 929 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 39.

The square root of 1009880256 is about 31778.6131856002. The cubic root of 1009880256 is about 1003.2826312082.

The spelling of 1009880256 in words is "one billion, nine million, eight hundred eighty thousand, two hundred fifty-six".