40146248805644 has 24 divisors (see below), whose sum is σ = 70313278296240. Its totient is φ = 20056744661184.

The previous prime is 40146248805631. The next prime is 40146248805667. The reversal of 40146248805644 is 44650884264104.

It is a happy number.

It is a super-2 number, since 2×40146248805644² (a number of 28 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 40146248805644.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40616942 + ... + 41593610.

It is an arithmetic number, because the mean of its divisors is an integer number (2929719929010).

Almost surely, 2^{40146248805644} is an apocalyptic number.

It is an amenable number.

40146248805644 is a deficient number, since it is larger than the sum of its proper divisors (30167029490596).

40146248805644 is a wasteful number, since it uses less digits than its factorization.

40146248805644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 985049 (or 985047 counting only the distinct ones).

The product of its (nonzero) digits is 23592960, while the sum is 56.

The spelling of 40146248805644 in words is "forty trillion, one hundred forty-six billion, two hundred forty-eight million, eight hundred five thousand, six hundred forty-four".