378521504 has 12 divisors (see below), whose sum is σ = 745214274. Its totient is φ = 189260736.

The previous prime is 378521497. The next prime is 378521569. The reversal of 378521504 is 405125873.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 218448400 + 160073104 = 14780^2 + 12652^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5914367 + ... + 5914430.

Almost surely, 2^378521504 is an apocalyptic number.

It is an amenable number.

378521504 is a deficient number, since it is larger than the sum of its proper divisors (366692770).

378521504 is a wasteful number, since it uses less digits than its factorization.

378521504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11828807 (or 11828799 counting only the distinct ones).

The product of its (nonzero) digits is 33600, while the sum is 35.

The square root of 378521504 is about 19455.6291083069. The cubic root of 378521504 is about 723.3750393719.

The spelling of 378521504 in words is "three hundred seventy-eight million, five hundred twenty-one thousand, five hundred four".