223402434 has 8 divisors (see below), whose sum is σ = 446804880. Its totient is φ = 74467476.

The previous prime is 223402433. The next prime is 223402447. The reversal of 223402434 is 434204322.

It is a sphenic number, since it is the product of 3 distinct primes.

223402434 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (223402433) 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 3 ways as a sum of consecutive naturals, for example, 18616864 + ... + 18616875.

It is an arithmetic number, because the mean of its divisors is an integer number (55850610).

Almost surely, 2^223402434 is an apocalyptic number.

223402434 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

223402434 is a wasteful number, since it uses less digits than its factorization.

223402434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37233744.

The product of its (nonzero) digits is 4608, while the sum is 24.

The square root of 223402434 is about 14946.6529363600. The cubic root of 223402434 is about 606.7772651210. Note that the first 3 decimals are identical.

Adding to 223402434 its reverse (434204322), we get a palindrome (657606756).

The spelling of 223402434 in words is "two hundred twenty-three million, four hundred two thousand, four hundred thirty-four".