40255705395 has 24 divisors (see below), whose sum is σ = 69813837600. Its totient is φ = 21458238336.

The previous prime is 40255705381. The next prime is 40255705397. The reversal of 40255705395 is 59350755204.

40255705395 is a `hidden beast` number, since 4 + 0 + 2 + 557 + 0 + 5 + 3 + 95 = 666.

It is not a de Polignac number, because 40255705395 - 2⁵ = 40255705363 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 40255705395.

It is not an unprimeable number, because it can be changed into a prime (40255705397) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 153490 + ... + 322599.

It is an arithmetic number, because the mean of its divisors is an integer number (2908909900).

Almost surely, 2^40255705395 is an apocalyptic number.

40255705395 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

40255705395 is a deficient number, since it is larger than the sum of its proper divisors (29558132205).

40255705395 is a wasteful number, since it uses less digits than its factorization.

40255705395 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 477979 (or 477976 counting only the distinct ones).

The product of its (nonzero) digits is 945000, while the sum is 45.

The spelling of 40255705395 in words is "forty billion, two hundred fifty-five million, seven hundred five thousand, three hundred ninety-five".