396549243898 has 16 divisors (see below), whose sum is σ = 616178200680. Its totient is φ = 191265184000.

The previous prime is 396549243889. The next prime is 396549243929. The reversal of 396549243898 is 898342945693.

It can be written as a sum of positive squares in 4 ways, for example, as 278527451049 + 118021792849 = 527757^2 + 343543^2 .

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, 27161053 + ... + 27175648.

Almost surely, 2^396549243898 is an apocalyptic number.

396549243898 is a deficient number, since it is larger than the sum of its proper divisors (219628956782).

396549243898 is a wasteful number, since it uses less digits than its factorization.

396549243898 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54336833.

The product of its digits is 403107840, while the sum is 70.

The spelling of 396549243898 in words is "three hundred ninety-six billion, five hundred forty-nine million, two hundred forty-three thousand, eight hundred ninety-eight".