368638642 has 16 divisors (see below), whose sum is σ = 586632672. Its totient is φ = 173136960.

The previous prime is 368638609. The next prime is 368638643. The reversal of 368638642 is 246836863.

368638642 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 = 368638592 and 368638601.

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, 7417 + ... + 28147.

It is an arithmetic number, because the mean of its divisors is an integer number (36664542).

Almost surely, 2^368638642 is an apocalyptic number.

368638642 is a deficient number, since it is larger than the sum of its proper divisors (217994030).

368638642 is a wasteful number, since it uses less digits than its factorization.

368638642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21273.

The product of its digits is 995328, while the sum is 46.

The square root of 368638642 is about 19199.9646353841. The cubic root of 368638642 is about 717.0238789869.

The spelling of 368638642 in words is "three hundred sixty-eight million, six hundred thirty-eight thousand, six hundred forty-two".