378638025 has 24 divisors (see below), whose sum is σ = 662841504. Its totient is φ = 190060800.

The previous prime is 378638021. The next prime is 378638033. The reversal of 378638025 is 520836873.

It is not a de Polignac number, because 378638025 - 2² = 378638021 is a prime.

It is not an unprimeable number, because it can be changed into a prime (378638021) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 147211 + ... + 149760.

It is an arithmetic number, because the mean of its divisors is an integer number (27618396).

Almost surely, 2^378638025 is an apocalyptic number.

It is an amenable number.

378638025 is a deficient number, since it is larger than the sum of its proper divisors (284203479).

378638025 is a wasteful number, since it uses less digits than its factorization.

378638025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 297001 (or 296996 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 42.

The square root of 378638025 is about 19458.6234096865. The cubic root of 378638025 is about 723.4492577318.

The spelling of 378638025 in words is "three hundred seventy-eight million, six hundred thirty-eight thousand, twenty-five".