214421500 has 24 divisors (see below), whose sum is σ = 468297648. Its totient is φ = 85768400.

The previous prime is 214421497. The next prime is 214421503. The reversal of 214421500 is 5124412.

It is an interprime number because it is at equal distance from previous prime (214421497) and next prime (214421503).

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (214421503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 213922 + ... + 214921.

It is an arithmetic number, because the mean of its divisors is an integer number (19512402).

Almost surely, 2^214421500 is an apocalyptic number.

214421500 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

214421500 is an abundant number, since it is smaller than the sum of its proper divisors (253876148).

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

214421500 is a wasteful number, since it uses less digits than its factorization.

214421500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 428862 (or 428850 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 19.

The square root of 214421500 is about 14643.1383248264. The cubic root of 214421500 is about 598.5348510691.

Adding to 214421500 its reverse (5124412), we get a palindrome (219545912).

The spelling of 214421500 in words is "two hundred fourteen million, four hundred twenty-one thousand, five hundred".