378434265 has 16 divisors (see below), whose sum is σ = 660540096. Its totient is φ = 183483200.

The previous prime is 378434239. The next prime is 378434269. The reversal of 378434265 is 562434873.

It is not a de Polignac number, because 378434265 - 2⁵ = 378434233 is a prime.

It is not an unprimeable number, because it can be changed into a prime (378434269) 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, 1146606 + ... + 1146935.

It is an arithmetic number, because the mean of its divisors is an integer number (41283756).

Almost surely, 2^378434265 is an apocalyptic number.

It is an amenable number.

378434265 is a deficient number, since it is larger than the sum of its proper divisors (282105831).

378434265 is a wasteful number, since it uses less digits than its factorization.

378434265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2293560.

The product of its digits is 483840, while the sum is 42.

The square root of 378434265 is about 19453.3869801636. The cubic root of 378434265 is about 723.3194622884.

The spelling of 378434265 in words is "three hundred seventy-eight million, four hundred thirty-four thousand, two hundred sixty-five".