1026260728 has 8 divisors (see below), whose sum is σ = 1924238880. Its totient is φ = 513130360.

The previous prime is 1026260687. The next prime is 1026260731. The reversal of 1026260728 is 8270626201.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×1026260728² = 2106422163670179968, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1026260693 and 1026260702.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64141288 + ... + 64141303.

It is an arithmetic number, because the mean of its divisors is an integer number (240529860).

Almost surely, 2^1026260728 is an apocalyptic number.

It is an amenable number.

1026260728 is a deficient number, since it is larger than the sum of its proper divisors (897978152).

1026260728 is a wasteful number, since it uses less digits than its factorization.

1026260728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128282597 (or 128282593 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 34.

The square root of 1026260728 is about 32035.3043999897. The cubic root of 1026260728 is about 1008.6780496112.

Adding to 1026260728 its reverse (8270626201), we get a palindrome (9296886929).

The spelling of 1026260728 in words is "one billion, twenty-six million, two hundred sixty thousand, seven hundred twenty-eight".