23253440398 has 4 divisors (see below), whose sum is σ = 34880160600. Its totient is φ = 11626720198.

The previous prime is 23253440347. The next prime is 23253440437. The reversal of 23253440398 is 89304435232.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5813360098 + ... + 5813360101.

It is an arithmetic number, because the mean of its divisors is an integer number (8720040150).

Almost surely, 2^23253440398 is an apocalyptic number.

23253440398 is a deficient number, since it is larger than the sum of its proper divisors (11626720202).

23253440398 is a wasteful number, since it uses less digits than its factorization.

23253440398 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11626720201.

The product of its (nonzero) digits is 622080, while the sum is 43.

The spelling of 23253440398 in words is "twenty-three billion, two hundred fifty-three million, four hundred forty thousand, three hundred ninety-eight".