397337242 has 8 divisors (see below), whose sum is σ = 596127636. Its totient is φ = 198628032.

The previous prime is 397337203. The next prime is 397337263. The reversal of 397337242 is 242733793.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 302099161 + 95238081 = 17381^2 + 9759^2 .

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 = 397337195 and 397337204.

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 3 ways as a sum of consecutive naturals, for example, 6063 + ... + 28834.

Almost surely, 2^397337242 is an apocalyptic number.

397337242 is a deficient number, since it is larger than the sum of its proper divisors (198790394).

397337242 is a wasteful number, since it uses less digits than its factorization.

397337242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40592.

The product of its digits is 190512, while the sum is 40.

The square root of 397337242 is about 19933.3198940869. The cubic root of 397337242 is about 735.1677109694.

The spelling of 397337242 in words is "three hundred ninety-seven million, three hundred thirty-seven thousand, two hundred forty-two".