378078252 has 12 divisors (see below), whose sum is σ = 882182616. Its totient is φ = 126026080.

The previous prime is 378078227. The next prime is 378078257. The reversal of 378078252 is 252870873.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (378078257) 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, 15753249 + ... + 15753272.

It is an arithmetic number, because the mean of its divisors is an integer number (73515218).

Almost surely, 2^378078252 is an apocalyptic number.

It is an amenable number.

378078252 is an abundant number, since it is smaller than the sum of its proper divisors (504104364).

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

378078252 is a wasteful number, since it uses less digits than its factorization.

378078252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31506528 (or 31506526 counting only the distinct ones).

The product of its (nonzero) digits is 188160, while the sum is 42.

The square root of 378078252 is about 19444.2344153736. The cubic root of 378078252 is about 723.0925695805.

The spelling of 378078252 in words is "three hundred seventy-eight million, seventy-eight thousand, two hundred fifty-two".