378990234 has 48 divisors (see below), whose sum is σ = 958434048. Its totient is φ = 105977376.

The previous prime is 378990233. The next prime is 378990239. The reversal of 378990234 is 432099873.

It is a happy number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 378990234.

It is not an unprimeable number, because it can be changed into a prime (378990233) 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 23 ways as a sum of consecutive naturals, for example, 26077 + ... + 37920.

It is an arithmetic number, because the mean of its divisors is an integer number (19967376).

Almost surely, 2^378990234 is an apocalyptic number.

378990234 is an abundant number, since it is smaller than the sum of its proper divisors (579443814).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

378990234 is a wasteful number, since it uses less digits than its factorization.

378990234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64059 (or 64056 counting only the distinct ones).

The product of its (nonzero) digits is 326592, while the sum is 45.

The square root of 378990234 is about 19467.6715094538. The cubic root of 378990234 is about 723.6735056563.

The spelling of 378990234 in words is "three hundred seventy-eight million, nine hundred ninety thousand, two hundred thirty-four".