40423607928 has 384 divisors, whose sum is σ = 133949088000. Its totient is φ = 11287019520.

The previous prime is 40423607927. The next prime is 40423607929. The reversal of 40423607928 is 82970632404.

40423607928 is a `hidden beast` number, since 404 + 236 + 0 + 7 + 9 + 2 + 8 = 666.

It is an interprime number because it is at equal distance from previous prime (40423607927) and next prime (40423607929).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40423607927) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 15031608 + ... + 15034296.

It is an arithmetic number, because the mean of its divisors is an integer number (348825750).

Almost surely, 2^40423607928 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40423607928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (66974544000).

40423607928 is an abundant number, since it is smaller than the sum of its proper divisors (93525480072).

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

40423607928 is a wasteful number, since it uses less digits than its factorization.

40423607928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2777 (or 2761 counting only the distinct ones).

The product of its (nonzero) digits is 580608, while the sum is 45.

The spelling of 40423607928 in words is "forty billion, four hundred twenty-three million, six hundred seven thousand, nine hundred twenty-eight".