378876445 has 16 divisors (see below), whose sum is σ = 472077360. Its totient is φ = 291561984.

The previous prime is 378876439. The next prime is 378876481. The reversal of 378876445 is 544678873.

It can be written as a sum of positive squares in 8 ways, for example, as 7080921 + 371795524 = 2661^2 + 19282^2 .

It is a cyclic number.

It is not a de Polignac number, because 378876445 - 2³ = 378876437 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 378876392 and 378876401.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35449 + ... + 44881.

It is an arithmetic number, because the mean of its divisors is an integer number (29504835).

Almost surely, 2^378876445 is an apocalyptic number.

It is an amenable number.

378876445 is a deficient number, since it is larger than the sum of its proper divisors (93200915).

378876445 is a wasteful number, since it uses less digits than its factorization.

378876445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9744.

The product of its digits is 4515840, while the sum is 52.

The square root of 378876445 is about 19464.7487782401. The cubic root of 378876445 is about 723.6010725435.

The spelling of 378876445 in words is "three hundred seventy-eight million, eight hundred seventy-six thousand, four hundred forty-five".