378942459 has 32 divisors (see below), whose sum is σ = 597402624. Its totient is φ = 209157120.

The previous prime is 378942451. The next prime is 378942469. The reversal of 378942459 is 954249873.

It is not a de Polignac number, because 378942459 - 2³ = 378942451 is a prime.

It is not an unprimeable number, because it can be changed into a prime (378942451) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 86547 + ... + 90819.

It is an arithmetic number, because the mean of its divisors is an integer number (18668832).

Almost surely, 2^378942459 is an apocalyptic number.

378942459 is a deficient number, since it is larger than the sum of its proper divisors (218460165).

378942459 is a wasteful number, since it uses less digits than its factorization.

378942459 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4427.

The product of its digits is 2177280, while the sum is 51.

The square root of 378942459 is about 19466.4444365169. Note that the first 4 decimals coincide. The cubic root of 378942459 is about 723.6430959417.

The spelling of 378942459 in words is "three hundred seventy-eight million, nine hundred forty-two thousand, four hundred fifty-nine".