40469040394 has 8 divisors (see below), whose sum is σ = 61329370788. Its totient is φ = 20025916800.

The previous prime is 40469040383. The next prime is 40469040421. The reversal of 40469040394 is 49304096404.

It can be written as a sum of positive squares in 2 ways, for example, as 35447475625 + 5021564769 = 188275^2 + 70863^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×40469040394² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 40469040394.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 104301457 + ... + 104301844.

Almost surely, 2^40469040394 is an apocalyptic number.

40469040394 is a deficient number, since it is larger than the sum of its proper divisors (20860330394).

40469040394 is a wasteful number, since it uses less digits than its factorization.

40469040394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 208603400.

The product of its (nonzero) digits is 373248, while the sum is 43.

The spelling of 40469040394 in words is "forty billion, four hundred sixty-nine million, forty thousand, three hundred ninety-four".