397716450 has 24 divisors (see below), whose sum is σ = 986337168. Its totient is φ = 106057680.

The previous prime is 397716439. The next prime is 397716461. The reversal of 397716450 is 54617793.

397716450 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (397716439) and next prime (397716461).

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1325572 + ... + 1325871.

It is an arithmetic number, because the mean of its divisors is an integer number (41097382).

Almost surely, 2^397716450 is an apocalyptic number.

397716450 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

397716450 is an abundant number, since it is smaller than the sum of its proper divisors (588620718).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

397716450 is a wasteful number, since it uses less digits than its factorization.

397716450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2651458 (or 2651453 counting only the distinct ones).

The product of its (nonzero) digits is 158760, while the sum is 42.

The square root of 397716450 is about 19942.8295384582. The cubic root of 397716450 is about 735.4015113852.

The spelling of 397716450 in words is "three hundred ninety-seven million, seven hundred sixteen thousand, four hundred fifty".