378128435 has 4 divisors (see below), whose sum is σ = 453754128. Its totient is φ = 302502744.

The previous prime is 378128431. The next prime is 378128453. The reversal of 378128435 is 534821873.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 534821873 = 4951 ⋅108023.

It is a cyclic number.

It is not a de Polignac number, because 378128435 - 2² = 378128431 is a prime.

It is a super-2 number, since 2×378128435² = 285962226711098450, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 378128392 and 378128401.

It is not an unprimeable number, because it can be changed into a prime (378128431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37812839 + ... + 37812848.

It is an arithmetic number, because the mean of its divisors is an integer number (113438532).

Almost surely, 2^378128435 is an apocalyptic number.

378128435 is a deficient number, since it is larger than the sum of its proper divisors (75625693).

378128435 is an equidigital number, since it uses as much as digits as its factorization.

378128435 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75625692.

The product of its digits is 161280, while the sum is 41.

The square root of 378128435 is about 19445.5248064947. The cubic root of 378128435 is about 723.1245606202.

The spelling of 378128435 in words is "three hundred seventy-eight million, one hundred twenty-eight thousand, four hundred thirty-five".