396926994770 has 16 divisors (see below), whose sum is σ = 715017782808. Its totient is φ = 158648755200.

The previous prime is 396926994703. The next prime is 396926994787. The reversal of 396926994770 is 77499629693.

It can be written as a sum of positive squares in 4 ways, for example, as 219592520449 + 177334474321 = 468607^2 + 421111^2 .

It is a junction number, because it is equal to n+sod(n) for n = 396926994694 and 396926994703.

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, 15241679 + ... + 15267698.

Almost surely, 2^396926994770 is an apocalyptic number.

396926994770 is a deficient number, since it is larger than the sum of its proper divisors (318090788038).

396926994770 is a wasteful number, since it uses less digits than its factorization.

396926994770 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30510685.

The product of its (nonzero) digits is 277766496, while the sum is 71.

The spelling of 396926994770 in words is "three hundred ninety-six billion, nine hundred twenty-six million, nine hundred ninety-four thousand, seven hundred seventy".