1228736352 has 48 divisors (see below), whose sum is σ = 3300454080. Its totient is φ = 400052352.

The previous prime is 1228736347. The next prime is 1228736363. The reversal of 1228736352 is 2536378221.

It is a tau number, because it is divible by the number of its divisors (48).

It is a self number, because there is not a number n which added to its sum of digits gives 1228736352.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 144702 + ... + 152957.

It is an arithmetic number, because the mean of its divisors is an integer number (68759460).

Almost surely, 2^1228736352 is an apocalyptic number.

1228736352 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1228736352 is an abundant number, since it is smaller than the sum of its proper divisors (2071717728).

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

1228736352 is a wasteful number, since it uses less digits than its factorization.

1228736352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 297715 (or 297707 counting only the distinct ones).

The product of its digits is 120960, while the sum is 39.

The square root of 1228736352 is about 35053.3358184353. The cubic root of 1228736352 is about 1071.0742267269.

The spelling of 1228736352 in words is "one billion, two hundred twenty-eight million, seven hundred thirty-six thousand, three hundred fifty-two".