397388542 has 8 divisors (see below), whose sum is σ = 609945336. Its totient is φ = 194073432.

The previous prime is 397388539. The next prime is 397388543. The reversal of 397388542 is 245883793.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (397388543) 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, 2310313 + ... + 2310484.

It is an arithmetic number, because the mean of its divisors is an integer number (76243167).

Almost surely, 2^397388542 is an apocalyptic number.

397388542 is a deficient number, since it is larger than the sum of its proper divisors (212556794).

397388542 is a wasteful number, since it uses less digits than its factorization.

397388542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4620842.

The product of its digits is 1451520, while the sum is 49.

The square root of 397388542 is about 19934.6066427206. The cubic root of 397388542 is about 735.1993486452.

The spelling of 397388542 in words is "three hundred ninety-seven million, three hundred eighty-eight thousand, five hundred forty-two".