40343707278 has 48 divisors (see below), whose sum is σ = 99925833696. Its totient is φ = 11523643200.

The previous prime is 40343707277. The next prime is 40343707289. The reversal of 40343707278 is 87270734304.

40343707278 is a `hidden beast` number, since 4 + 0 + 3 + 4 + 370 + 7 + 278 = 666.

It is a super-2 number, since 2×40343707278² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40343707273) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 443928 + ... + 527028.

It is an arithmetic number, because the mean of its divisors is an integer number (2081788202).

Almost surely, 2^40343707278 is an apocalyptic number.

40343707278 is an abundant number, since it is smaller than the sum of its proper divisors (59582126418).

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

40343707278 is a wasteful number, since it uses less digits than its factorization.

40343707278 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86969 (or 86966 counting only the distinct ones).

The product of its (nonzero) digits is 790272, while the sum is 45.

The spelling of 40343707278 in words is "forty billion, three hundred forty-three million, seven hundred seven thousand, two hundred seventy-eight".