378089946 has 48 divisors (see below), whose sum is σ = 903750120. Its totient is φ = 113495040.

The previous prime is 378089941. The next prime is 378089963. The reversal of 378089946 is 649980873.

It can be written as a sum of positive squares in 4 ways, for example, as 165251025 + 212838921 = 12855^2 + 14589^2 .

It is a junction number, because it is equal to n+sod(n) for n = 378089892 and 378089901.

It is not an unprimeable number, because it can be changed into a prime (378089941) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10111 + ... + 29298.

Almost surely, 2^378089946 is an apocalyptic number.

378089946 is an abundant number, since it is smaller than the sum of its proper divisors (525660174).

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

378089946 is a wasteful number, since it uses less digits than its factorization.

378089946 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39471 (or 39468 counting only the distinct ones).

The product of its (nonzero) digits is 2612736, while the sum is 54.

The square root of 378089946 is about 19444.5351191537. The cubic root of 378089946 is about 723.1000246133.

The spelling of 378089946 in words is "three hundred seventy-eight million, eighty-nine thousand, nine hundred forty-six".