378812233 has 4 divisors (see below), whose sum is σ = 379064448. Its totient is φ = 378560020.

The previous prime is 378812227. The next prime is 378812251. The reversal of 378812233 is 332218873.

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 a de Polignac number, because none of the positive numbers 2^k-378812233 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 378812192 and 378812201.

It is not an unprimeable number, because it can be changed into a prime (378812263) 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, 123841 + ... + 126862.

It is an arithmetic number, because the mean of its divisors is an integer number (94766112).

Almost surely, 2^378812233 is an apocalyptic number.

It is an amenable number.

378812233 is a deficient number, since it is larger than the sum of its proper divisors (252215).

378812233 is a wasteful number, since it uses less digits than its factorization.

378812233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 252214.

The product of its digits is 48384, while the sum is 37.

The square root of 378812233 is about 19463.0992650194. The cubic root of 378812233 is about 723.5601915845.

The spelling of 378812233 in words is "three hundred seventy-eight million, eight hundred twelve thousand, two hundred thirty-three".