397019146 has 8 divisors (see below), whose sum is σ = 621421344. Its totient is φ = 189878700.

The previous prime is 397019143. The next prime is 397019159. The reversal of 397019146 is 641910793.

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

It is a junction number, because it is equal to n+sod(n) for n = 397019099 and 397019108.

It is not an unprimeable number, because it can be changed into a prime (397019143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4315380 + ... + 4315471.

It is an arithmetic number, because the mean of its divisors is an integer number (77677668).

Almost surely, 2^397019146 is an apocalyptic number.

397019146 is a deficient number, since it is larger than the sum of its proper divisors (224402198).

397019146 is a wasteful number, since it uses less digits than its factorization.

397019146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8630876.

The product of its (nonzero) digits is 40824, while the sum is 40.

The square root of 397019146 is about 19925.3392944763. The cubic root of 397019146 is about 734.9714743584.

The spelling of 397019146 in words is "three hundred ninety-seven million, nineteen thousand, one hundred forty-six".