40371975440 has 40 divisors (see below), whose sum is σ = 97945927488. Its totient is φ = 15446668160.

The previous prime is 40371975439. The next prime is 40371975499. The reversal of 40371975440 is 4457917304.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (40).

It is a junction number, because it is equal to n+sod(n) for n = 40371975391 and 40371975400.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10968806 + ... + 10972485.

Almost surely, 2^40371975440 is an apocalyptic number.

40371975440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40371975440 is an abundant number, since it is smaller than the sum of its proper divisors (57573952048).

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

40371975440 is a wasteful number, since it uses less digits than its factorization.

40371975440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21941327 (or 21941321 counting only the distinct ones).

The product of its (nonzero) digits is 423360, while the sum is 44.

The spelling of 40371975440 in words is "forty billion, three hundred seventy-one million, nine hundred seventy-five thousand, four hundred forty".