221433414 has 16 divisors (see below), whose sum is σ = 444770352. Its totient is φ = 73493888.

The previous prime is 221433389. The next prime is 221433427. The reversal of 221433414 is 414334122.

221433414 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 77799 + ... + 80594.

It is an arithmetic number, because the mean of its divisors is an integer number (27798147).

Almost surely, 2^221433414 is an apocalyptic number.

221433414 is an abundant number, since it is smaller than the sum of its proper divisors (223336938).

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

221433414 is a wasteful number, since it uses less digits than its factorization.

221433414 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158631.

The product of its digits is 2304, while the sum is 24.

The square root of 221433414 is about 14880.6388975743. The cubic root of 221433414 is about 604.9893347846.

Adding to 221433414 its reverse (414334122), we get a palindrome (635767536).

The spelling of 221433414 in words is "two hundred twenty-one million, four hundred thirty-three thousand, four hundred fourteen".