387172022 has 8 divisors (see below), whose sum is σ = 580926216. Its totient is φ = 193529952.

The previous prime is 387172007. The next prime is 387172057. The reversal of 387172022 is 220271783.

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 387172022.

It is a congruent number.

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, 18788 + ... + 33575.

It is an arithmetic number, because the mean of its divisors is an integer number (72615777).

Almost surely, 2^387172022 is an apocalyptic number.

387172022 is a deficient number, since it is larger than the sum of its proper divisors (193754194).

387172022 is a wasteful number, since it uses less digits than its factorization.

387172022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56062.

The product of its (nonzero) digits is 9408, while the sum is 32.

The square root of 387172022 is about 19676.6872719978. The cubic root of 387172022 is about 728.8441218398.

The spelling of 387172022 in words is "three hundred eighty-seven million, one hundred seventy-two thousand, twenty-two".