363940421 has 8 divisors (see below), whose sum is σ = 412564320. Its totient is φ = 318263472.

The previous prime is 363940387. The next prime is 363940429. The reversal of 363940421 is 124049363.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-363940421 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (363940429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 736475 + ... + 736968.

It is an arithmetic number, because the mean of its divisors is an integer number (51570540).

Almost surely, 2^363940421 is an apocalyptic number.

It is an amenable number.

363940421 is a deficient number, since it is larger than the sum of its proper divisors (48623899).

363940421 is a wasteful number, since it uses less digits than its factorization.

363940421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1473475.

The product of its (nonzero) digits is 15552, while the sum is 32.

The square root of 363940421 is about 19077.2225703848. Note that the first 3 decimals coincide. The cubic root of 363940421 is about 713.9647403648.

Adding to 363940421 its reverse (124049363), we get a palindrome (487989784).

The spelling of 363940421 in words is "three hundred sixty-three million, nine hundred forty thousand, four hundred twenty-one".