338738587440842 has 64 divisors (see below), whose sum is σ = 540007767684000. Its totient is φ = 158811746795520.

The previous prime is 338738587440829. The next prime is 338738587440943. The reversal of 338738587440842 is 248044785837833.

It can be written as a sum of positive squares in 16 ways, for example, as 1113360515281 + 337625226925561 = 1055159^2 + 18374581^2 .

It is a super-2 number, since 2×338738587440842² (a number of 30 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 338738587440842.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 33402873092 + ... + 33402883232.

Almost surely, 2^{338738587440842} is an apocalyptic number.

338738587440842 is a deficient number, since it is larger than the sum of its proper divisors (201269180243158).

338738587440842 is a wasteful number, since it uses less digits than its factorization.

338738587440842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13691.

The product of its (nonzero) digits is 3468165120, while the sum is 74.

The spelling of 338738587440842 in words is "three hundred thirty-eight trillion, seven hundred thirty-eight billion, five hundred eighty-seven million, four hundred forty thousand, eight hundred forty-two".