40839669242 has 16 divisors (see below), whose sum is σ = 61537271400. Its totient is φ = 20327442432.

The previous prime is 40839669223. The next prime is 40839669257. The reversal of 40839669242 is 24296693804.

It can be written as a sum of positive squares in 4 ways, for example, as 30901772521 + 9937896721 = 175789^2 + 99689^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 369884 + ... + 467432.

Almost surely, 2^40839669242 is an apocalyptic number.

40839669242 is a deficient number, since it is larger than the sum of its proper divisors (20697602158).

40839669242 is a wasteful number, since it uses less digits than its factorization.

40839669242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98497.

The product of its (nonzero) digits is 4478976, while the sum is 53.

The spelling of 40839669242 in words is "forty billion, eight hundred thirty-nine million, six hundred sixty-nine thousand, two hundred forty-two".