397143190 has 8 divisors (see below), whose sum is σ = 714857760. Its totient is φ = 158857272.

The previous prime is 397143181. The next prime is 397143199. The reversal of 397143190 is 91341793.

397143190 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 (397143181) and next prime (397143199).

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

It is a super-2 number, since 2×397143190² = 315445426726752200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (397143199) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19857150 + ... + 19857169.

It is an arithmetic number, because the mean of its divisors is an integer number (89357220).

Almost surely, 2^397143190 is an apocalyptic number.

397143190 is a deficient number, since it is larger than the sum of its proper divisors (317714570).

397143190 is a wasteful number, since it uses less digits than its factorization.

397143190 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39714326.

The product of its (nonzero) digits is 20412, while the sum is 37.

The square root of 397143190 is about 19928.4517712742. The cubic root of 397143190 is about 735.0480108086.

The spelling of 397143190 in words is "three hundred ninety-seven million, one hundred forty-three thousand, one hundred ninety".