378433351 has 4 divisors (see below), whose sum is σ = 380755192. Its totient is φ = 376111512.

The previous prime is 378433339. The next prime is 378433357. The reversal of 378433351 is 153334873.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 153334873 = 199 ⋅770527.

It is a cyclic number.

It is not a de Polignac number, because 378433351 - 2²³ = 370044743 is a prime.

It is a super-2 number, since 2×378433351² = 286423602298178402, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 378433351.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (378433357) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1160676 + ... + 1161001.

It is an arithmetic number, because the mean of its divisors is an integer number (95188798).

Almost surely, 2^378433351 is an apocalyptic number.

378433351 is a deficient number, since it is larger than the sum of its proper divisors (2321841).

378433351 is a wasteful number, since it uses less digits than its factorization.

378433351 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2321840.

The product of its digits is 90720, while the sum is 37.

The square root of 378433351 is about 19453.3634880963. The cubic root of 378433351 is about 723.3188799640.

The spelling of 378433351 in words is "three hundred seventy-eight million, four hundred thirty-three thousand, three hundred fifty-one".