397438430810 has 64 divisors (see below), whose sum is σ = 732919570560. Its totient is φ = 155122809600.

The previous prime is 397438430773. The next prime is 397438430821. The reversal of 397438430810 is 18034834793.

It is a super-2 number, since 2×397438430810² (a number of 24 digits) contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 69710960 + ... + 69716660.

It is an arithmetic number, because the mean of its divisors is an integer number (11451868290).

Almost surely, 2^397438430810 is an apocalyptic number.

397438430810 is a deficient number, since it is larger than the sum of its proper divisors (335481139750).

397438430810 is a wasteful number, since it uses less digits than its factorization.

397438430810 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6623.

The product of its (nonzero) digits is 1741824, while the sum is 50.

The spelling of 397438430810 in words is "three hundred ninety-seven billion, four hundred thirty-eight million, four hundred thirty thousand, eight hundred ten".