378888820 has 24 divisors (see below), whose sum is σ = 821334528. Its totient is φ = 146666400.

The previous prime is 378888817. The next prime is 378888827. The reversal of 378888820 is 28888873.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (378888827) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 304936 + ... + 306175.

It is an arithmetic number, because the mean of its divisors is an integer number (34222272).

Almost surely, 2^378888820 is an apocalyptic number.

It is an amenable number.

378888820 is an abundant number, since it is smaller than the sum of its proper divisors (442445708).

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

378888820 is a wasteful number, since it uses less digits than its factorization.

378888820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 611151 (or 611149 counting only the distinct ones).

The product of its (nonzero) digits is 1376256, while the sum is 52.

The square root of 378888820 is about 19465.0666579902. The cubic root of 378888820 is about 723.6089506313.

The spelling of 378888820 in words is "three hundred seventy-eight million, eight hundred eighty-eight thousand, eight hundred twenty".