213216414 has 16 divisors (see below), whose sum is σ = 451517328. Its totient is φ = 66891392.

The previous prime is 213216413. The next prime is 213216427. The reversal of 213216414 is 414612312.

It is a super-2 number, since 2×213216414² = 90922478398038792, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213216413) 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, 1045077 + ... + 1045280.

It is an arithmetic number, because the mean of its divisors is an integer number (28219833).

Almost surely, 2^213216414 is an apocalyptic number.

213216414 is an abundant number, since it is smaller than the sum of its proper divisors (238300914).

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

213216414 is a wasteful number, since it uses less digits than its factorization.

213216414 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2090379.

The product of its digits is 1152, while the sum is 24.

The square root of 213216414 is about 14601.9318584905. The cubic root of 213216414 is about 597.4114539982.

Adding to 213216414 its reverse (414612312), we get a palindrome (627828726).

The spelling of 213216414 in words is "two hundred thirteen million, two hundred sixteen thousand, four hundred fourteen".