40197675840 has 112 divisors (see below), whose sum is σ = 145860162432. Its totient is φ = 9188038656.

The previous prime is 40197675821. The next prime is 40197675841. The reversal of 40197675840 is 4857679104.

It is a tau number, because it is divible by the number of its divisors (112).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40197675841) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2984179 + ... + 2997618.

Almost surely, 2^40197675840 is an apocalyptic number.

40197675840 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40197675840 is an abundant number, since it is smaller than the sum of its proper divisors (105662486592).

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

40197675840 is a wasteful number, since it uses less digits than its factorization.

40197675840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5981824 (or 5981814 counting only the distinct ones).

The product of its (nonzero) digits is 1693440, while the sum is 51.

The spelling of 40197675840 in words is "forty billion, one hundred ninety-seven million, six hundred seventy-five thousand, eight hundred forty".