378204554 has 32 divisors (see below), whose sum is σ = 704785536. Its totient is φ = 148213440.

The previous prime is 378204551. The next prime is 378204569. The reversal of 378204554 is 455402873.

It is a happy number.

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (378204551) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9764 + ... + 29184.

It is an arithmetic number, because the mean of its divisors is an integer number (22024548).

Almost surely, 2^378204554 is an apocalyptic number.

378204554 is a deficient number, since it is larger than the sum of its proper divisors (326580982).

378204554 is a wasteful number, since it uses less digits than its factorization.

378204554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19550.

The product of its (nonzero) digits is 134400, while the sum is 38.

The square root of 378204554 is about 19447.4819449717. The cubic root of 378204554 is about 723.1730801356.

The spelling of 378204554 in words is "three hundred seventy-eight million, two hundred four thousand, five hundred fifty-four".