40903405440 has 64 divisors (see below), whose sum is σ = 130379610960. Its totient is φ = 10907574272.

The previous prime is 40903405393. The next prime is 40903405471. The reversal of 40903405440 is 4450430904.

It is a tau number, because it is divible by the number of its divisors (64).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10650009 + ... + 10653848.

Almost surely, 2^40903405440 is an apocalyptic number.

40903405440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40903405440 is an abundant number, since it is smaller than the sum of its proper divisors (89476205520).

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

40903405440 is a wasteful number, since it uses less digits than its factorization.

40903405440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21303879 (or 21303867 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 33.

The spelling of 40903405440 in words is "forty billion, nine hundred three million, four hundred five thousand, four hundred forty".