40838162642 has 8 divisors (see below), whose sum is σ = 61888762236. Its totient is φ = 20208575232.

The previous prime is 40838162633. The next prime is 40838162669. The reversal of 40838162642 is 24626183804.

It can be written as a sum of positive squares in 2 ways, for example, as 40357193881 + 480968761 = 200891^2 + 21931^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 40838162593 and 40838162602.

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, 105252803 + ... + 105253190.

Almost surely, 2^40838162642 is an apocalyptic number.

40838162642 is a deficient number, since it is larger than the sum of its proper divisors (21050599594).

40838162642 is a wasteful number, since it uses less digits than its factorization.

40838162642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210506092.

The product of its (nonzero) digits is 442368, while the sum is 44.

The spelling of 40838162642 in words is "forty billion, eight hundred thirty-eight million, one hundred sixty-two thousand, six hundred forty-two".