1207040256 has 108 divisors (see below), whose sum is σ = 3685031532. Its totient is φ = 378667008.

The previous prime is 1207040251. The next prime is 1207040269. The reversal of 1207040256 is 6520407021.

1207040256 is a `hidden beast` number, since 1 + 207 + 0 + 402 + 56 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 431974656 + 775065600 = 20784^2 + 27840^2 .

It is not an unprimeable number, because it can be changed into a prime (1207040251) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 23760 + ... + 54576.

Almost surely, 2^1207040256 is an apocalyptic number.

1207040256 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 1207040256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1842515766).

1207040256 is an abundant number, since it is smaller than the sum of its proper divisors (2477991276).

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

1207040256 is a wasteful number, since it uses less digits than its factorization.

1207040256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30856 (or 30839 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 27.

The square root of 1207040256 is about 34742.4848852237. The cubic root of 1207040256 is about 1064.7326817011.

Adding to 1207040256 its reverse (6520407021), we get a palindrome (7727447277).

It can be divided in two parts, 12070 and 40256, that added together give a triangular number (52326 = T₃₂₃).

The spelling of 1207040256 in words is "one billion, two hundred seven million, forty thousand, two hundred fifty-six".