23440047406 has 16 divisors (see below), whose sum is σ = 37267673616. Its totient is φ = 11018947456.

The previous prime is 23440047403. The next prime is 23440047409. The reversal of 23440047406 is 60474004432.

It is an interprime number because it is at equal distance from previous prime (23440047403) and next prime (23440047409).

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23440047403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 331801 + ... + 396196.

It is an arithmetic number, because the mean of its divisors is an integer number (2329229601).

Almost surely, 2^23440047406 is an apocalyptic number.

23440047406 is a deficient number, since it is larger than the sum of its proper divisors (13827626210).

23440047406 is a wasteful number, since it uses less digits than its factorization.

23440047406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 728963.

The product of its (nonzero) digits is 64512, while the sum is 34.

The spelling of 23440047406 in words is "twenty-three billion, four hundred forty million, forty-seven thousand, four hundred six".