368638644 has 24 divisors (see below), whose sum is σ = 938353248. Its totient is φ = 111708640.

The previous prime is 368638643. The next prime is 368638679. The reversal of 368638644 is 446836863.

368638644 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 368638593 and 368638602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (368638643) 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, 1396227 + ... + 1396490.

It is an arithmetic number, because the mean of its divisors is an integer number (39098052).

Almost surely, 2^368638644 is an apocalyptic number.

It is an amenable number.

368638644 is an abundant number, since it is smaller than the sum of its proper divisors (569714604).

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

368638644 is a wasteful number, since it uses less digits than its factorization.

368638644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2792735 (or 2792733 counting only the distinct ones).

The product of its digits is 1990656, while the sum is 48.

The square root of 368638644 is about 19199.9646874675. The cubic root of 368638644 is about 717.0238802836.

The spelling of 368638644 in words is "three hundred sixty-eight million, six hundred thirty-eight thousand, six hundred forty-four".