378915375 has 32 divisors (see below), whose sum is σ = 631800000. Its totient is φ = 201676800.

The previous prime is 378915371. The next prime is 378915377. The reversal of 378915375 is 573519873.

It is not a de Polignac number, because 378915375 - 2² = 378915371 is a prime.

It is a super-2 number, since 2×378915375² = 287153722822781250, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (378915371) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 302751 + ... + 303999.

It is an arithmetic number, because the mean of its divisors is an integer number (19743750).

Almost surely, 2^378915375 is an apocalyptic number.

378915375 is a deficient number, since it is larger than the sum of its proper divisors (252884625).

378915375 is a wasteful number, since it uses less digits than its factorization.

378915375 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2076 (or 2066 counting only the distinct ones).

The product of its digits is 793800, while the sum is 48.

The square root of 378915375 is about 19465.7487654598. The cubic root of 378915375 is about 723.6258553149.

The spelling of 378915375 in words is "three hundred seventy-eight million, nine hundred fifteen thousand, three hundred seventy-five".