23220402434 has 4 divisors (see below), whose sum is σ = 34830603654. Its totient is φ = 11610201216.

The previous prime is 23220402421. The next prime is 23220402461. The reversal of 23220402434 is 43420402232.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 22781374225 + 439028209 = 150935^2 + 20953^2 .

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 5805100607 + ... + 5805100610.

Almost surely, 2^23220402434 is an apocalyptic number.

23220402434 is a deficient number, since it is larger than the sum of its proper divisors (11610201220).

23220402434 is a wasteful number, since it uses less digits than its factorization.

23220402434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11610201219.

The product of its (nonzero) digits is 9216, while the sum is 26.

Adding to 23220402434 its reverse (43420402232), we get a palindrome (66640804666).

The spelling of 23220402434 in words is "twenty-three billion, two hundred twenty million, four hundred two thousand, four hundred thirty-four".