40409251748 has 12 divisors (see below), whose sum is σ = 71914770480. Its totient is φ = 19862174472.

The previous prime is 40409251723. The next prime is 40409251759. The reversal of 40409251748 is 84715290404.

It is a junction number, because it is equal to n+sod(n) for n = 40409251699 and 40409251708.

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 3 ways as a sum of consecutive naturals, for example, 85612586 + ... + 85613057.

It is an arithmetic number, because the mean of its divisors is an integer number (5992897540).

Almost surely, 2^40409251748 is an apocalyptic number.

It is an amenable number.

40409251748 is a deficient number, since it is larger than the sum of its proper divisors (31505518732).

40409251748 is a wasteful number, since it uses less digits than its factorization.

40409251748 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171225706 (or 171225704 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 44.

The spelling of 40409251748 in words is "forty billion, four hundred nine million, two hundred fifty-one thousand, seven hundred forty-eight".