378370057 has 4 divisors (see below), whose sum is σ = 407475460. Its totient is φ = 349264656.

The previous prime is 378370019. The next prime is 378370073. The reversal of 378370057 is 750073873.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 750073873 = 61 ⋅12296293.

It can be written as a sum of positive squares in 2 ways, for example, as 25644096 + 352725961 = 5064^2 + 18781^2 .

It is a de Polignac number, because none of the positive numbers 2^k-378370057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (378370087) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14552682 + ... + 14552707.

It is an arithmetic number, because the mean of its divisors is an integer number (101868865).

Almost surely, 2^378370057 is an apocalyptic number.

It is an amenable number.

378370057 is a deficient number, since it is larger than the sum of its proper divisors (29105403).

378370057 is a wasteful number, since it uses less digits than its factorization.

378370057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29105402.

The product of its (nonzero) digits is 123480, while the sum is 40.

The square root of 378370057 is about 19451.7366062776. The cubic root of 378370057 is about 723.2785520368.

The spelling of 378370057 in words is "three hundred seventy-eight million, three hundred seventy thousand, fifty-seven".