1264353600 has 336 divisors, whose sum is σ = 4444715520. Its totient is φ = 313958400.

The previous prime is 1264353547. The next prime is 1264353617. The reversal of 1264353600 is 63534621.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4315054 + ... + 4315346.

It is an arithmetic number, because the mean of its divisors is an integer number (13228320).

Almost surely, 2^1264353600 is an apocalyptic number.

1264353600 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 1264353600, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2222357760).

1264353600 is an abundant number, since it is smaller than the sum of its proper divisors (3180361920).

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

1264353600 is a wasteful number, since it uses less digits than its factorization.

1264353600 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 378 (or 363 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 30.

The square root of 1264353600 is about 35557.7502100456. The cubic root of 1264353600 is about 1081.3248487506.

The spelling of 1264353600 in words is "one billion, two hundred sixty-four million, three hundred fifty-three thousand, six hundred".