1025886720 has 240 divisors, whose sum is σ = 3413219040. Its totient is φ = 262840320.

The previous prime is 1025886661. The next prime is 1025886727. The reversal of 1025886720 is 276885201.

It is a tau number, because it is divible by the number of its divisors (240).

It is not an unprimeable number, because it can be changed into a prime (1025886727) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7380411 + ... + 7380549.

It is an arithmetic number, because the mean of its divisors is an integer number (14221746).

Almost surely, 2^1025886720 is an apocalyptic number.

1025886720 is a gapful number since it is divisible by the number (10) 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 1025886720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1706609520).

1025886720 is an abundant number, since it is smaller than the sum of its proper divisors (2387332320).

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

1025886720 is an equidigital number, since it uses as much as digits as its factorization.

1025886720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 227 (or 180 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 39.

The square root of 1025886720 is about 32029.4664332705. The cubic root of 1025886720 is about 1008.5555013193. Note that the first 4 decimals are identical.

The spelling of 1025886720 in words is "one billion, twenty-five million, eight hundred eighty-six thousand, seven hundred twenty".