1263885480 has 192 divisors, whose sum is σ = 4825941120. Its totient is φ = 282816000.

The previous prime is 1263885473. The next prime is 1263885487. The reversal of 1263885480 is 845883621.

1263885480 is a `hidden beast` number, since 1 + 2 + 638 + 8 + 5 + 4 + 8 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (1263885473) and next prime (1263885487).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (1263885487) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 39205 + ... + 63755.

It is an arithmetic number, because the mean of its divisors is an integer number (25135110).

Almost surely, 2^1263885480 is an apocalyptic number.

1263885480 is a gapful number since it is divisible by the number (10) 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 1263885480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2412970560).

1263885480 is an abundant number, since it is smaller than the sum of its proper divisors (3562055640).

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

1263885480 is a wasteful number, since it uses less digits than its factorization.

1263885480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24592 (or 24585 counting only the distinct ones).

The product of its (nonzero) digits is 368640, while the sum is 45.

The square root of 1263885480 is about 35551.1670694508. The cubic root of 1263885480 is about 1081.1913807418.

The spelling of 1263885480 in words is "one billion, two hundred sixty-three million, eight hundred eighty-five thousand, four hundred eighty".