378057 has 4 divisors (see below), whose sum is σ = 504080. Its totient is φ = 252036.

The previous prime is 378041. The next prime is 378071. The reversal of 378057 is 750873.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 378057 - 2⁴ = 378041 is a prime.

It is a D-number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (378757) 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, 63007 + ... + 63012.

It is an arithmetic number, because the mean of its divisors is an integer number (126020).

2³⁷⁸⁰⁵⁷ is an apocalyptic number.

It is an amenable number.

378057 is a deficient number, since it is larger than the sum of its proper divisors (126023).

378057 is a wasteful number, since it uses less digits than its factorization.

378057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126022.

The product of its (nonzero) digits is 5880, while the sum is 30.

The square root of 378057 is about 614.8633994637. The cubic root of 378057 is about 72.3079020841.

Subtracting 378057 from its reverse (750873), we obtain a triangular number (372816 = T₈₆₃).

The spelling of 378057 in words is "three hundred seventy-eight thousand, fifty-seven".