40918481408 has 80 divisors (see below), whose sum is σ = 94294738560. Its totient is φ = 17375440896.

The previous prime is 40918481297. The next prime is 40918481431. The reversal of 40918481408 is 80418481904.

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, 338285 + ... + 443027.

It is an arithmetic number, because the mean of its divisors is an integer number (1178684232).

Almost surely, 2^40918481408 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 40918481408, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (47147369280).

40918481408 is an abundant number, since it is smaller than the sum of its proper divisors (53376257152).

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

40918481408 is a wasteful number, since it uses less digits than its factorization.

40918481408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104877 (or 104861 counting only the distinct ones).

The product of its (nonzero) digits is 294912, while the sum is 47.

The spelling of 40918481408 in words is "forty billion, nine hundred eighteen million, four hundred eighty-one thousand, four hundred eight".