378505892 has 24 divisors (see below), whose sum is σ = 669291000. Its totient is φ = 187289856.

The previous prime is 378505889. The next prime is 378505903. The reversal of 378505892 is 298505873.

It can be written as a sum of positive squares in 4 ways, for example, as 10863616 + 367642276 = 3296^2 + 19174^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 185534 + ... + 187562.

It is an arithmetic number, because the mean of its divisors is an integer number (27887125).

Almost surely, 2^378505892 is an apocalyptic number.

It is an amenable number.

378505892 is a deficient number, since it is larger than the sum of its proper divisors (290785108).

378505892 is a wasteful number, since it uses less digits than its factorization.

378505892 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2495 (or 2493 counting only the distinct ones).

The product of its (nonzero) digits is 604800, while the sum is 47.

The square root of 378505892 is about 19455.2278835279. The cubic root of 378505892 is about 723.3650941101.

The spelling of 378505892 in words is "three hundred seventy-eight million, five hundred five thousand, eight hundred ninety-two".