363840681 has 8 divisors (see below), whose sum is σ = 513657504. Its totient is φ = 228292160.

The previous prime is 363840667. The next prime is 363840713. The reversal of 363840681 is 186048363.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 363840681 - 2¹³ = 363832489 is a prime.

It is a super-2 number, since 2×363840681² = 264760082301087522, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (363840181) 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, 3567015 + ... + 3567116.

It is an arithmetic number, because the mean of its divisors is an integer number (64207188).

Almost surely, 2^363840681 is an apocalyptic number.

It is an amenable number.

363840681 is a deficient number, since it is larger than the sum of its proper divisors (149816823).

363840681 is a wasteful number, since it uses less digits than its factorization.

363840681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7134151.

The product of its (nonzero) digits is 82944, while the sum is 39.

The square root of 363840681 is about 19074.6082790709. The cubic root of 363840681 is about 713.8995123354.

The spelling of 363840681 in words is "three hundred sixty-three million, eight hundred forty thousand, six hundred eighty-one".