40924042394 has 4 divisors (see below), whose sum is σ = 61386063594. Its totient is φ = 20462021196.

The previous prime is 40924042349. The next prime is 40924042399. The reversal of 40924042394 is 49324042904.

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

It can be written as a sum of positive squares in only one way, i.e., 39463809025 + 1460233369 = 198655^2 + 38213^2 .

It is not an unprimeable number, because it can be changed into a prime (40924042399) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10231010597 + ... + 10231010600.

Almost surely, 2^40924042394 is an apocalyptic number.

40924042394 is a deficient number, since it is larger than the sum of its proper divisors (20462021200).

40924042394 is a wasteful number, since it uses less digits than its factorization.

40924042394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20462021199.

The product of its (nonzero) digits is 248832, while the sum is 41.

The spelling of 40924042394 in words is "forty billion, nine hundred twenty-four million, forty-two thousand, three hundred ninety-four".