23220645434 has 8 divisors (see below), whose sum is σ = 39806820768. Its totient is φ = 9951705180.

The previous prime is 23220645433. The next prime is 23220645439. The reversal of 23220645434 is 43454602232.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 23220645394 and 23220645403.

It is not an unprimeable number, because it can be changed into a prime (23220645431) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 829308752 + ... + 829308779.

It is an arithmetic number, because the mean of its divisors is an integer number (4975852596).

Almost surely, 2^23220645434 is an apocalyptic number.

23220645434 is a deficient number, since it is larger than the sum of its proper divisors (16586175334).

23220645434 is a wasteful number, since it uses less digits than its factorization.

23220645434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1658617540.

The product of its (nonzero) digits is 138240, while the sum is 35.

The spelling of 23220645434 in words is "twenty-three billion, two hundred twenty million, six hundred forty-five thousand, four hundred thirty-four".