378788890 has 8 divisors (see below), whose sum is σ = 681820020. Its totient is φ = 151515552.

The previous prime is 378788887. The next prime is 378788903. The reversal of 378788890 is 98887873.

378788890 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 378030249 + 758641 = 19443^2 + 871^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18939435 + ... + 18939454.

Almost surely, 2^378788890 is an apocalyptic number.

378788890 is a deficient number, since it is larger than the sum of its proper divisors (303031130).

378788890 is a wasteful number, since it uses less digits than its factorization.

378788890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37878896.

The product of its (nonzero) digits is 5419008, while the sum is 58.

The square root of 378788890 is about 19462.4995825305. The cubic root of 378788890 is about 723.5453289771.

The spelling of 378788890 in words is "three hundred seventy-eight million, seven hundred eighty-eight thousand, eight hundred ninety".