393287248 has 40 divisors (see below), whose sum is σ = 808341120. Its totient is φ = 184727040.

The previous prime is 393287243. The next prime is 393287273. The reversal of 393287248 is 842782393.

It is a junction number, because it is equal to n+sod(n) for n = 393287198 and 393287207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (393287243) by changing a digit.

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, 194563 + ... + 196573.

It is an arithmetic number, because the mean of its divisors is an integer number (20208528).

Almost surely, 2^393287248 is an apocalyptic number.

It is an amenable number.

393287248 is an abundant number, since it is smaller than the sum of its proper divisors (415053872).

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

393287248 is a wasteful number, since it uses less digits than its factorization.

393287248 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2755 (or 2749 counting only the distinct ones).

The product of its digits is 580608, while the sum is 46.

The square root of 393287248 is about 19831.4711506736. The cubic root of 393287248 is about 732.6613609345.

The spelling of 393287248 in words is "three hundred ninety-three million, two hundred eighty-seven thousand, two hundred forty-eight".