1026740256 has 48 divisors (see below), whose sum is σ = 2721386304. Its totient is φ = 338920704.

The previous prime is 1026740233. The next prime is 1026740257. The reversal of 1026740256 is 6520476201.

It is a tau number, because it is divible by the number of its divisors (48).

It is not an unprimeable number, because it can be changed into a prime (1026740257) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42031 + ... + 61806.

It is an arithmetic number, because the mean of its divisors is an integer number (56695548).

Almost surely, 2^1026740256 is an apocalyptic number.

1026740256 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1026740256 is an abundant number, since it is smaller than the sum of its proper divisors (1694646048).

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

1026740256 is a wasteful number, since it uses less digits than its factorization.

1026740256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103953 (or 103945 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 33.

The square root of 1026740256 is about 32042.7878936899. The cubic root of 1026740256 is about 1008.8351292689.

The spelling of 1026740256 in words is "one billion, twenty-six million, seven hundred forty thousand, two hundred fifty-six".