368322640 has 40 divisors (see below), whose sum is σ = 978687360. Its totient is φ = 126281856.

The previous prime is 368322637. The next prime is 368322641. The reversal of 368322640 is 46223863.

It is a tau number, because it is divible by the number of its divisors (40).

It is a junction number, because it is equal to n+sod(n) for n = 368322596 and 368322605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (368322641) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 328300 + ... + 329419.

It is an arithmetic number, because the mean of its divisors is an integer number (24467184).

Almost surely, 2^368322640 is an apocalyptic number.

It is an amenable number.

368322640 is an abundant number, since it is smaller than the sum of its proper divisors (610364720).

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

368322640 is a wasteful number, since it uses less digits than its factorization.

368322640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 657739 (or 657733 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 34.

The square root of 368322640 is about 19191.7336371679. The cubic root of 368322640 is about 716.8189395805.

The spelling of 368322640 in words is "three hundred sixty-eight million, three hundred twenty-two thousand, six hundred forty".