378478452 has 48 divisors (see below), whose sum is σ = 966292992. Its totient is φ = 114346080.

The previous prime is 378478433. The next prime is 378478453. The reversal of 378478452 is 254874873.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (378478453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41673 + ... + 49935.

It is an arithmetic number, because the mean of its divisors is an integer number (20131104).

Almost surely, 2^378478452 is an apocalyptic number.

It is an amenable number.

378478452 is an abundant number, since it is smaller than the sum of its proper divisors (587814540).

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

378478452 is a wasteful number, since it uses less digits than its factorization.

378478452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8628 (or 8626 counting only the distinct ones).

The product of its digits is 1505280, while the sum is 48.

The square root of 378478452 is about 19454.5226618388. The cubic root of 378478452 is about 723.3476134330.

The spelling of 378478452 in words is "three hundred seventy-eight million, four hundred seventy-eight thousand, four hundred fifty-two".