397353542 has 4 divisors (see below), whose sum is σ = 596030316. Its totient is φ = 198676770.

The previous prime is 397353533. The next prime is 397353569. The reversal of 397353542 is 245353793.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 397353542.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 99338384 + ... + 99338387.

It is an arithmetic number, because the mean of its divisors is an integer number (149007579).

Almost surely, 2^397353542 is an apocalyptic number.

397353542 is a deficient number, since it is larger than the sum of its proper divisors (198676774).

397353542 is a wasteful number, since it uses less digits than its factorization.

397353542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 198676773.

The product of its digits is 340200, while the sum is 41.

The square root of 397353542 is about 19933.7287530457. The cubic root of 397353542 is about 735.1777637814.

The spelling of 397353542 in words is "three hundred ninety-seven million, three hundred fifty-three thousand, five hundred forty-two".