1263726360 has 384 divisors, whose sum is σ = 4683631680. Its totient is φ = 304570368.

The previous prime is 1263726341. The next prime is 1263726371. The reversal of 1263726360 is 636273621.

1263726360 is a `hidden beast` number, since 12 + 6 + 3 + 7 + 2 + 636 + 0 = 666.

1263726360 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 9224212 + ... + 9224348.

Almost surely, 2^1263726360 is an apocalyptic number.

1263726360 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 1263726360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2341815840).

1263726360 is an abundant number, since it is smaller than the sum of its proper divisors (3419905320).

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

1263726360 is a wasteful number, since it uses less digits than its factorization.

1263726360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 249 (or 233 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 36.

The square root of 1263726360 is about 35548.9290977942. The cubic root of 1263726360 is about 1081.1460057466.

Adding to 1263726360 its reverse (636273621), we get a palindrome (1899999981).

The spelling of 1263726360 in words is "one billion, two hundred sixty-three million, seven hundred twenty-six thousand, three hundred sixty".