378819033 has 4 divisors (see below), whose sum is σ = 505092048. Its totient is φ = 252546020.

The previous prime is 378818971. The next prime is 378819043. The reversal of 378819033 is 330918873.

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.

It is a cyclic number.

It is not a de Polignac number, because 378819033 - 2⁶ = 378818969 is a prime.

It is not an unprimeable number, because it can be changed into a prime (378819043) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 63136503 + ... + 63136508.

It is an arithmetic number, because the mean of its divisors is an integer number (126273012).

Almost surely, 2^378819033 is an apocalyptic number.

It is an amenable number.

378819033 is a deficient number, since it is larger than the sum of its proper divisors (126273015).

378819033 is a wasteful number, since it uses less digits than its factorization.

378819033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126273014.

The product of its (nonzero) digits is 108864, while the sum is 42.

The square root of 378819033 is about 19463.2739537828. The cubic root of 378819033 is about 723.5645210644.

The spelling of 378819033 in words is "three hundred seventy-eight million, eight hundred nineteen thousand, thirty-three".