378867492 has 72 divisors (see below), whose sum is σ = 994273280. Its totient is φ = 121512960.

The previous prime is 378867473. The next prime is 378867509. The reversal of 378867492 is 294768873.

378867492 is a `hidden beast` number, since 3 + 78 + 86 + 7 + 492 = 666.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 214509 + ... + 216267.

Almost surely, 2^378867492 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 378867492, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (497136640).

378867492 is an abundant number, since it is smaller than the sum of its proper divisors (615405788).

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

378867492 is a wasteful number, since it uses less digits than its factorization.

378867492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1993 (or 1988 counting only the distinct ones).

The product of its digits is 4064256, while the sum is 54.

The square root of 378867492 is about 19464.5187970317. The cubic root of 378867492 is about 723.5953728389.

The spelling of 378867492 in words is "three hundred seventy-eight million, eight hundred sixty-seven thousand, four hundred ninety-two".