1025718784 has 40 divisors (see below), whose sum is σ = 2056966560. Its totient is φ = 510974976.

The previous prime is 1025718767. The next prime is 1025718797. The reversal of 1025718784 is 4878175201.

It is a self number, because there is not a number n which added to its sum of digits gives 1025718784.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 141357 + ... + 148435.

It is an arithmetic number, because the mean of its divisors is an integer number (51424164).

Almost surely, 2^1025718784 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1025718784, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1028483280).

1025718784 is an abundant number, since it is smaller than the sum of its proper divisors (1031247776).

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

1025718784 is an frugal number, since it uses more digits than its factorization.

1025718784 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7380 (or 7364 counting only the distinct ones).

The product of its (nonzero) digits is 125440, while the sum is 43.

The square root of 1025718784 is about 32026.8447399990. The cubic root of 1025718784 is about 1008.5004653469.

The spelling of 1025718784 in words is "one billion, twenty-five million, seven hundred eighteen thousand, seven hundred eighty-four".