378223446 has 16 divisors (see below), whose sum is σ = 800943984. Its totient is φ = 118658304.

The previous prime is 378223427. The next prime is 378223457. The reversal of 378223446 is 644322873.

It is a super-2 number, since 2×378223446² = 286105950208229832, which contains 22 as substring.

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, 1853935 + ... + 1854138.

It is an arithmetic number, because the mean of its divisors is an integer number (50058999).

Almost surely, 2^378223446 is an apocalyptic number.

378223446 is an abundant number, since it is smaller than the sum of its proper divisors (422720538).

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

378223446 is a wasteful number, since it uses less digits than its factorization.

378223446 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3708095.

The product of its digits is 193536, while the sum is 39.

The square root of 378223446 is about 19447.9676573158. The cubic root of 378223446 is about 723.1851212020.

The spelling of 378223446 in words is "three hundred seventy-eight million, two hundred twenty-three thousand, four hundred forty-six".