378505446 has 32 divisors (see below), whose sum is σ = 834357888. Its totient is φ = 113514240.

The previous prime is 378505423. The next prime is 378505447. The reversal of 378505446 is 644505873.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 378505398 and 378505407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (378505447) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23160 + ... + 35963.

It is an arithmetic number, because the mean of its divisors is an integer number (26073684).

Almost surely, 2^378505446 is an apocalyptic number.

378505446 is an abundant number, since it is smaller than the sum of its proper divisors (455852442).

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

378505446 is a wasteful number, since it uses less digits than its factorization.

378505446 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59236.

The product of its (nonzero) digits is 403200, while the sum is 42.

The square root of 378505446 is about 19455.2164213097. The cubic root of 378505446 is about 723.3648099922.

The spelling of 378505446 in words is "three hundred seventy-eight million, five hundred five thousand, four hundred forty-six".