378417 has 16 divisors (see below), whose sum is σ = 562688. Its totient is φ = 224640.

The previous prime is 378407. The next prime is 378439. The reversal of 378417 is 714873.

It is a happy number.

It is not a de Polignac number, because 378417 - 2⁴ = 378401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (378407) 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, 1053 + ... + 1365.

It is an arithmetic number, because the mean of its divisors is an integer number (35168).

2³⁷⁸⁴¹⁷ is an apocalyptic number.

It is an amenable number.

378417 is a deficient number, since it is larger than the sum of its proper divisors (184271).

378417 is a wasteful number, since it uses less digits than its factorization.

378417 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 360.

The product of its digits is 4704, while the sum is 30.

The square root of 378417 is about 615.1560777559. The cubic root of 378417 is about 72.3308462315.

The spelling of 378417 in words is "three hundred seventy-eight thousand, four hundred seventeen".