393366288 has 80 divisors (see below), whose sum is σ = 1163953280. Its totient is φ = 112140288.

The previous prime is 393366269. The next prime is 393366293. The reversal of 393366288 is 882663393.

It is a Harshad number since it is a multiple of its sum of digits (48).

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 15 ways as a sum of consecutive naturals, for example, 192858 + ... + 194886.

It is an arithmetic number, because the mean of its divisors is an integer number (14549416).

Almost surely, 2^393366288 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 393366288, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (581976640).

393366288 is an abundant number, since it is smaller than the sum of its proper divisors (770586992).

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

393366288 is a wasteful number, since it uses less digits than its factorization.

393366288 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2624 (or 2618 counting only the distinct ones).

The product of its digits is 1119744, while the sum is 48.

The square root of 393366288 is about 19833.4638427079. The cubic root of 393366288 is about 732.7104392907.

The spelling of 393366288 in words is "three hundred ninety-three million, three hundred sixty-six thousand, two hundred eighty-eight".