214215500 has 48 divisors (see below), whose sum is σ = 492492000. Its totient is φ = 81172800.

The previous prime is 214215499. The next prime is 214215503. The reversal of 214215500 is 5512412.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (214215503) 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 15 ways as a sum of consecutive naturals, for example, 1775 + ... + 20774.

It is an arithmetic number, because the mean of its divisors is an integer number (10260250).

Almost surely, 2^214215500 is an apocalyptic number.

214215500 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

214215500 is an abundant number, since it is smaller than the sum of its proper divisors (278276500).

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

214215500 is a wasteful number, since it uses less digits than its factorization.

214215500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22587 (or 22575 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 20.

The square root of 214215500 is about 14636.1026233079. The cubic root of 214215500 is about 598.3431139445.

Adding to 214215500 its reverse (5512412), we get a palindrome (219727912).

The spelling of 214215500 in words is "two hundred fourteen million, two hundred fifteen thousand, five hundred".