214213404 has 24 divisors (see below), whose sum is σ = 510467328. Its totient is φ = 69885040.

The previous prime is 214213399. The next prime is 214213411. The reversal of 214213404 is 404312412.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 189342 + ... + 190469.

It is an arithmetic number, because the mean of its divisors is an integer number (21269472).

Almost surely, 2^214213404 is an apocalyptic number.

It is an amenable number.

214213404 is an abundant number, since it is smaller than the sum of its proper divisors (296253924).

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

214213404 is a wasteful number, since it uses less digits than its factorization.

214213404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 379865 (or 379863 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 214213404 is about 14636.0310193713. The cubic root of 214213404 is about 598.3411624342.

Adding to 214213404 its reverse (404312412), we get a palindrome (618525816).

The spelling of 214213404 in words is "two hundred fourteen million, two hundred thirteen thousand, four hundred four".