397286424 has 64 divisors (see below), whose sum is σ = 1105353600. Its totient is φ = 132215328.

The previous prime is 397286423. The next prime is 397286443. The reversal of 397286424 is 424682793.

It is a self number, because there is not a number n which added to its sum of digits gives 397286424.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (397286423) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 189687 + ... + 191769.

It is an arithmetic number, because the mean of its divisors is an integer number (17271150).

Almost surely, 2^397286424 is an apocalyptic number.

It is an amenable number.

397286424 is an abundant number, since it is smaller than the sum of its proper divisors (708067176).

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

397286424 is a wasteful number, since it uses less digits than its factorization.

397286424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2981 (or 2971 counting only the distinct ones).

The product of its digits is 580608, while the sum is 45.

The square root of 397286424 is about 19932.0451534708. The cubic root of 397286424 is about 735.1363678670.

The spelling of 397286424 in words is "three hundred ninety-seven million, two hundred eighty-six thousand, four hundred twenty-four".