40423443032444 has 12 divisors (see below), whose sum is σ = 70922878845000. Its totient is φ = 20159763362448.

The previous prime is 40423443032437. The next prime is 40423443032461. The reversal of 40423443032444 is 44423034432404.

It is a super-2 number, since 2×40423443032444² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12989536694 + ... + 12989539805.

It is an arithmetic number, because the mean of its divisors is an integer number (5910239903750).

Almost surely, 2^{40423443032444} is an apocalyptic number.

It is an amenable number.

40423443032444 is a deficient number, since it is larger than the sum of its proper divisors (30499435812556).

40423443032444 is a wasteful number, since it uses less digits than its factorization.

40423443032444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25979076892 (or 25979076890 counting only the distinct ones).

The product of its (nonzero) digits is 1769472, while the sum is 41.

Adding to 40423443032444 its reverse (44423034432404), we get a palindrome (84846477464848).

The spelling of 40423443032444 in words is "forty trillion, four hundred twenty-three billion, four hundred forty-three million, thirty-two thousand, four hundred forty-four".