320241816 has 64 divisors (see below), whose sum is σ = 911282400. Its totient is φ = 104140800.

The previous prime is 320241797. The next prime is 320241833. The reversal of 320241816 is 618142023.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 320241816.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9225 + ... + 26936.

Almost surely, 2^320241816 is an apocalyptic number.

320241816 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

320241816 is an abundant number, since it is smaller than the sum of its proper divisors (591040584).

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

320241816 is a wasteful number, since it uses less digits than its factorization.

320241816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36217 (or 36207 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The square root of 320241816 is about 17895.3015062614. The cubic root of 320241816 is about 684.1626267666.

Adding to 320241816 its reverse (618142023), we get a palindrome (938383839).

The spelling of 320241816 in words is "three hundred twenty million, two hundred forty-one thousand, eight hundred sixteen".