405364216 has 16 divisors (see below), whose sum is σ = 760359600. Its totient is φ = 202601664.

The previous prime is 405364187. The next prime is 405364217. The reversal of 405364216 is 612463504.

It is a super-2 number, since 2×405364216² = 328640295226589312, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (405364217) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15045 + ... + 32203.

It is an arithmetic number, because the mean of its divisors is an integer number (47522475).

Almost surely, 2^405364216 is an apocalyptic number.

It is an amenable number.

405364216 is a deficient number, since it is larger than the sum of its proper divisors (354995384).

405364216 is a wasteful number, since it uses less digits than its factorization.

405364216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20118 (or 20114 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 31.

The square root of 405364216 is about 20133.6587832416. The cubic root of 405364216 is about 740.0853419957.

The spelling of 405364216 in words is "four hundred five million, three hundred sixty-four thousand, two hundred sixteen".