378018446 has 16 divisors (see below), whose sum is σ = 616578144. Its totient is φ = 172774944.

The previous prime is 378018391. The next prime is 378018467. The reversal of 378018446 is 644810873.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 67901 + ... + 73256.

It is an arithmetic number, because the mean of its divisors is an integer number (38536134).

Almost surely, 2^378018446 is an apocalyptic number.

378018446 is a deficient number, since it is larger than the sum of its proper divisors (238559698).

378018446 is a wasteful number, since it uses less digits than its factorization.

378018446 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141275.

The product of its (nonzero) digits is 129024, while the sum is 41.

The square root of 378018446 is about 19442.6964693686. The cubic root of 378018446 is about 723.0544403005.

The spelling of 378018446 in words is "three hundred seventy-eight million, eighteen thousand, four hundred forty-six".