40423020344 has 32 divisors (see below), whose sum is σ = 87243945600. Its totient is φ = 17199514080.

The previous prime is 40423020317. The next prime is 40423020371. The reversal of 40423020344 is 44302032404.

40423020344 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (40423020317) and next prime (40423020371).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2588762 + ... + 2604329.

It is an arithmetic number, because the mean of its divisors is an integer number (2726373300).

Almost surely, 2^40423020344 is an apocalyptic number.

It is an amenable number.

40423020344 is an abundant number, since it is smaller than the sum of its proper divisors (46820925256).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40423020344 is a wasteful number, since it uses less digits than its factorization.

40423020344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5193243 (or 5193239 counting only the distinct ones).

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

Adding to 40423020344 its reverse (44302032404), we get a palindrome (84725052748).

The spelling of 40423020344 in words is "forty billion, four hundred twenty-three million, twenty thousand, three hundred forty-four".