378088638 has 64 divisors (see below), whose sum is σ = 822528000. Its totient is φ = 115483104.

The previous prime is 378088603. The next prime is 378088639. The reversal of 378088638 is 836880873.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (378088639) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 450223 + ... + 451061.

It is an arithmetic number, because the mean of its divisors is an integer number (12852000).

Almost surely, 2^378088638 is an apocalyptic number.

378088638 is a gapful number since it is divisible by the number (38) formed by its first and last digit.

378088638 is an abundant number, since it is smaller than the sum of its proper divisors (444439362).

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

378088638 is a wasteful number, since it uses less digits than its factorization.

378088638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 989.

The product of its (nonzero) digits is 1548288, while the sum is 51.

The square root of 378088638 is about 19444.5014849957. The cubic root of 378088638 is about 723.0991907589.

The spelling of 378088638 in words is "three hundred seventy-eight million, eighty-eight thousand, six hundred thirty-eight".