379221143 has 20 divisors (see below), whose sum is σ = 450064680. Its totient is φ = 319418064.

The previous prime is 379221113. The next prime is 379221151. The reversal of 379221143 is 341122973.

It is not a de Polignac number, because 379221143 - 2¹⁰ = 379220119 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (379221113) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 140321 + ... + 142997.

It is an arithmetic number, because the mean of its divisors is an integer number (22503234).

Almost surely, 2^379221143 is an apocalyptic number.

379221143 is a deficient number, since it is larger than the sum of its proper divisors (70843537).

379221143 is an frugal number, since it uses more digits than its factorization.

379221143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2764 (or 2743 counting only the distinct ones).

The product of its digits is 9072, while the sum is 32.

The square root of 379221143 is about 19473.6011821132. The cubic root of 379221143 is about 723.8204477012.

The spelling of 379221143 in words is "three hundred seventy-nine million, two hundred twenty-one thousand, one hundred forty-three".