1263364452 has 360 divisors, whose sum is σ = 4226923008. Its totient is φ = 326592000.

The previous prime is 1263364451. The next prime is 1263364457. The reversal of 1263364452 is 2544633621.

1263364452 is a `hidden beast` number, since 1 + 2 + 6 + 3 + 3 + 644 + 5 + 2 = 666.

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

It is not an unprimeable number, because it can be changed into a prime (1263364451) by changing a digit.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 8366577 + ... + 8366727.

Almost surely, 2^1263364452 is an apocalyptic number.

1263364452 is a gapful number since it is divisible by the number (12) 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 1263364452, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2113461504).

1263364452 is an abundant number, since it is smaller than the sum of its proper divisors (2963558556).

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

1263364452 is a wasteful number, since it uses less digits than its factorization.

1263364452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 229 (or 211 counting only the distinct ones).

The product of its digits is 103680, while the sum is 36.

The square root of 1263364452 is about 35543.8384533804. The cubic root of 1263364452 is about 1081.0427891119.

The spelling of 1263364452 in words is "one billion, two hundred sixty-three million, three hundred sixty-four thousand, four hundred fifty-two".