381197642 has 8 divisors (see below), whose sum is σ = 653481696. Its totient is φ = 163370412.

The previous prime is 381197633. The next prime is 381197657. The reversal of 381197642 is 246791183.

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

It is a self number, because there is not a number n which added to its sum of digits gives 381197642.

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, 13614188 + ... + 13614215.

It is an arithmetic number, because the mean of its divisors is an integer number (81685212).

Almost surely, 2^381197642 is an apocalyptic number.

381197642 is a deficient number, since it is larger than the sum of its proper divisors (272284054).

381197642 is a wasteful number, since it uses less digits than its factorization.

381197642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27228412.

The product of its digits is 72576, while the sum is 41.

The square root of 381197642 is about 19524.2833927394. The cubic root of 381197642 is about 725.0757856568.

The spelling of 381197642 in words is "three hundred eighty-one million, one hundred ninety-seven thousand, six hundred forty-two".