378220672 has 32 divisors (see below), whose sum is σ = 754816320. Its totient is φ = 188776704.

The previous prime is 378220657. The next prime is 378220673. The reversal of 378220672 is 276022873.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (32).

It is not an unprimeable number, because it can be changed into a prime (378220673) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 80533 + ... + 85099.

It is an arithmetic number, because the mean of its divisors is an integer number (23588010).

Almost surely, 2^378220672 is an apocalyptic number.

378220672 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

378220672 is a deficient number, since it is larger than the sum of its proper divisors (376595648).

378220672 is an equidigital number, since it uses as much as digits as its factorization.

378220672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5228 (or 5216 counting only the distinct ones).

The product of its (nonzero) digits is 56448, while the sum is 37.

The square root of 378220672 is about 19447.8963386789. The cubic root of 378220672 is about 723.1833531814.

The spelling of 378220672 in words is "three hundred seventy-eight million, two hundred twenty thousand, six hundred seventy-two".