40841638040 has 64 divisors (see below), whose sum is σ = 106350796800. Its totient is φ = 13825588608.

The previous prime is 40841638037. The next prime is 40841638051. The reversal of 40841638040 is 4083614804.

It is a junction number, because it is equal to n+sod(n) for n = 40841637985 and 40841638003.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 901064 + ... + 945303.

It is an arithmetic number, because the mean of its divisors is an integer number (1661731200).

Almost surely, 2^40841638040 is an apocalyptic number.

40841638040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40841638040 is an abundant number, since it is smaller than the sum of its proper divisors (65509158760).

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

40841638040 is a wasteful number, since it uses less digits than its factorization.

40841638040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1846464 (or 1846460 counting only the distinct ones).

The product of its (nonzero) digits is 73728, while the sum is 38.

The spelling of 40841638040 in words is "forty billion, eight hundred forty-one million, six hundred thirty-eight thousand, forty".