40917892394 has 4 divisors (see below), whose sum is σ = 61376838594. Its totient is φ = 20458946196.

The previous prime is 40917892391. The next prime is 40917892397. The reversal of 40917892394 is 49329871904.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (40917892391) and next prime (40917892397).

It can be written as a sum of positive squares in only one way, i.e., 23105520025 + 17812372369 = 152005^2 + 133463^2 .

It is not an unprimeable number, because it can be changed into a prime (40917892391) by changing a digit.

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 as a sum of consecutive naturals, namely, 10229473097 + ... + 10229473100.

Almost surely, 2^40917892394 is an apocalyptic number.

40917892394 is a deficient number, since it is larger than the sum of its proper divisors (20458946200).

40917892394 is a wasteful number, since it uses less digits than its factorization.

40917892394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20458946199.

The product of its (nonzero) digits is 3919104, while the sum is 56.

The spelling of 40917892394 in words is "forty billion, nine hundred seventeen million, eight hundred ninety-two thousand, three hundred ninety-four".