40730981376 has 44 divisors (see below), whose sum is σ = 108562923392. Its totient is φ = 13576992768.

The previous prime is 40730981351. The next prime is 40730981387. The reversal of 40730981376 is 67318903704.

It is a Harshad number since it is a multiple of its sum of digits (48).

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, 6626320 + ... + 6632463.

It is an arithmetic number, because the mean of its divisors is an integer number (2467339168).

Almost surely, 2^40730981376 is an apocalyptic number.

It is an amenable number.

40730981376 is an abundant number, since it is smaller than the sum of its proper divisors (67831942016).

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

40730981376 is a wasteful number, since it uses less digits than its factorization.

40730981376 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13258806 (or 13258788 counting only the distinct ones).

The product of its (nonzero) digits is 762048, while the sum is 48.

The spelling of 40730981376 in words is "forty billion, seven hundred thirty million, nine hundred eighty-one thousand, three hundred seventy-six".