1000378475 has 24 divisors (see below), whose sum is σ = 1273512240. Its totient is φ = 779072000.

The previous prime is 1000378471. The next prime is 1000378513. The reversal of 1000378475 is 5748730001.

It is not a de Polignac number, because 1000378475 - 2² = 1000378471 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1000378471) 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, 674735 + ... + 676215.

It is an arithmetic number, because the mean of its divisors is an integer number (53063010).

Almost surely, 2^1000378475 is an apocalyptic number.

1000378475 is a deficient number, since it is larger than the sum of its proper divisors (273133765).

1000378475 is a wasteful number, since it uses less digits than its factorization.

1000378475 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2191 (or 2186 counting only the distinct ones).

The product of its (nonzero) digits is 23520, while the sum is 35.

The square root of 1000378475 is about 31628.7602507591. The cubic root of 1000378475 is about 1000.1261424208.

The spelling of 1000378475 in words is "one billion, three hundred seventy-eight thousand, four hundred seventy-five".