378155930 has 8 divisors (see below), whose sum is σ = 680680692. Its totient is φ = 151262368.

The previous prime is 378155929. The next prime is 378155941. The reversal of 378155930 is 39551873.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 345104929 + 33051001 = 18577^2 + 5749^2 .

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, 18907787 + ... + 18907806.

Almost surely, 2^378155930 is an apocalyptic number.

378155930 is a deficient number, since it is larger than the sum of its proper divisors (302524762).

378155930 is a wasteful number, since it uses less digits than its factorization.

378155930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37815600.

The product of its (nonzero) digits is 113400, while the sum is 41.

The square root of 378155930 is about 19446.2317686486. The cubic root of 378155930 is about 723.1420871412.

The spelling of 378155930 in words is "three hundred seventy-eight million, one hundred fifty-five thousand, nine hundred thirty".