368389780 has 48 divisors (see below), whose sum is σ = 849207744. Its totient is φ = 133125120.

The previous prime is 368389669. The next prime is 368389783. The reversal of 368389780 is 87983863.

368389780 = 2561² + 2562² + ... + 2615².

It is a happy number.

It is a super-2 number, since 2×368389780² = 271422060016896800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (368389783) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30724 + ... + 40996.

It is an arithmetic number, because the mean of its divisors is an integer number (17691828).

Almost surely, 2^368389780 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 368389780, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (424603872).

368389780 is an abundant number, since it is smaller than the sum of its proper divisors (480817964).

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

368389780 is a wasteful number, since it uses less digits than its factorization.

368389780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10456 (or 10454 counting only the distinct ones).

The product of its (nonzero) digits is 1741824, while the sum is 52.

The square root of 368389780 is about 19193.4827480580. The cubic root of 368389780 is about 716.8624922472.

The spelling of 368389780 in words is "three hundred sixty-eight million, three hundred eighty-nine thousand, seven hundred eighty".