378133717 has 16 divisors (see below), whose sum is σ = 414288000. Its totient is φ = 343022400.

The previous prime is 378133711. The next prime is 378133751. The reversal of 378133717 is 717331873.

It is a cyclic number.

It is not a de Polignac number, because 378133717 - 2³ = 378133709 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 378133717.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (378133711) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 460167 + ... + 460987.

It is an arithmetic number, because the mean of its divisors is an integer number (25893000).

Almost surely, 2^378133717 is an apocalyptic number.

It is an amenable number.

378133717 is a deficient number, since it is larger than the sum of its proper divisors (36154283).

378133717 is a wasteful number, since it uses less digits than its factorization.

378133717 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1404.

The product of its digits is 74088, while the sum is 40.

The square root of 378133717 is about 19445.6606213314. The cubic root of 378133717 is about 723.1279276650.

The spelling of 378133717 in words is "three hundred seventy-eight million, one hundred thirty-three thousand, seven hundred seventeen".