368661820 has 24 divisors (see below), whose sum is σ = 785096928. Its totient is φ = 145387200.

The previous prime is 368661803. The next prime is 368661851. The reversal of 368661820 is 28166863.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 128391 + ... + 131230.

It is an arithmetic number, because the mean of its divisors is an integer number (32712372).

Almost surely, 2^368661820 is an apocalyptic number.

It is an amenable number.

368661820 is an abundant number, since it is smaller than the sum of its proper divisors (416435108).

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

368661820 is a wasteful number, since it uses less digits than its factorization.

368661820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 259701 (or 259699 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 40.

The square root of 368661820 is about 19200.5682207585. The cubic root of 368661820 is about 717.0389061972.

The spelling of 368661820 in words is "three hundred sixty-eight million, six hundred sixty-one thousand, eight hundred twenty".