396469985290 has 8 divisors (see below), whose sum is σ = 713645973540. Its totient is φ = 158587994112.

The previous prime is 396469985273. The next prime is 396469985291. The reversal of 396469985290 is 92589964693.

It can be written as a sum of positive squares in 2 ways, for example, as 395989542729 + 480442561 = 629277^2 + 21919^2 .

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

It is not an unprimeable number, because it can be changed into a prime (396469985291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19823499255 + ... + 19823499274.

Almost surely, 2^396469985290 is an apocalyptic number.

396469985290 is a deficient number, since it is larger than the sum of its proper divisors (317175988250).

396469985290 is a wasteful number, since it uses less digits than its factorization.

396469985290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39646998536.

The product of its (nonzero) digits is 226748160, while the sum is 70.

The spelling of 396469985290 in words is "three hundred ninety-six billion, four hundred sixty-nine million, nine hundred eighty-five thousand, two hundred ninety".