1262806480 has 40 divisors (see below), whose sum is σ = 3161875752. Its totient is φ = 466266624.

The previous prime is 1262806463. The next prime is 1262806541. The reversal of 1262806480 is 846082621.

It can be written as a sum of positive squares in 4 ways, for example, as 62599744 + 1200206736 = 7912^2 + 34644^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a Smith number, since the sum of its digits (37) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 606079 + ... + 608158.

Almost surely, 2^1262806480 is an apocalyptic number.

1262806480 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1262806480 is an abundant number, since it is smaller than the sum of its proper divisors (1899069272).

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

1262806480 is a wasteful number, since it uses less digits than its factorization.

1262806480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1214263 (or 1214257 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 37.

The square root of 1262806480 is about 35535.9885186834. The cubic root of 1262806480 is about 1080.8836161383.

The spelling of 1262806480 in words is "one billion, two hundred sixty-two million, eight hundred six thousand, four hundred eighty".