397696042 has 8 divisors (see below), whose sum is σ = 601823556. Its totient is φ = 197088192.

The previous prime is 397696037. The next prime is 397696069. The reversal of 397696042 is 240696793.

It can be written as a sum of positive squares in 2 ways, for example, as 267028281 + 130667761 = 16341^2 + 11431^2 .

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 = 397695983 and 397696001.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 879633 + ... + 880084.

Almost surely, 2^397696042 is an apocalyptic number.

397696042 is a deficient number, since it is larger than the sum of its proper divisors (204127514).

397696042 is a wasteful number, since it uses less digits than its factorization.

397696042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1759832.

The product of its (nonzero) digits is 489888, while the sum is 46.

The square root of 397696042 is about 19942.3178692949. The cubic root of 397696042 is about 735.3889326323.

The spelling of 397696042 in words is "three hundred ninety-seven million, six hundred ninety-six thousand, forty-two".