378429 has 4 divisors (see below), whose sum is σ = 504576. Its totient is φ = 252284.

The previous prime is 378407. The next prime is 378439. The reversal of 378429 is 924873.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 924873 = 3 ⋅308291.

It is a cyclic number.

It is not a de Polignac number, because 378429 - 2¹² = 374333 is a prime.

It is a d-powerful number, because it can be written as 3¹¹ + 7⁶ + 4⁷ + 8 + 2¹³ + 9⁵ .

It is a D-number.

It is a self number, because there is not a number n which added to its sum of digits gives 378429.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (378439) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 63069 + ... + 63074.

It is an arithmetic number, because the mean of its divisors is an integer number (126144).

2³⁷⁸⁴²⁹ is an apocalyptic number.

It is an amenable number.

378429 is a deficient number, since it is larger than the sum of its proper divisors (126147).

378429 is a wasteful number, since it uses less digits than its factorization.

378429 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126146.

The product of its digits is 12096, while the sum is 33.

The square root of 378429 is about 615.1658313008. The cubic root of 378429 is about 72.3316107858.

The spelling of 378429 in words is "three hundred seventy-eight thousand, four hundred twenty-nine".