378774770 has 24 divisors (see below), whose sum is σ = 749412972. Its totient is φ = 137735840.

The previous prime is 378774761. The next prime is 378774779. The reversal of 378774770 is 77477873.

It is an interprime number because it is at equal distance from previous prime (378774761) and next prime (378774779).

It can be written as a sum of positive squares in 2 ways, for example, as 376088449 + 2686321 = 19393^2 + 1639^2 .

It is not an unprimeable number, because it can be changed into a prime (378774779) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 155309 + ... + 157728.

Almost surely, 2^378774770 is an apocalyptic number.

378774770 is a deficient number, since it is larger than the sum of its proper divisors (370638202).

378774770 is a wasteful number, since it uses less digits than its factorization.

378774770 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 313066 (or 313055 counting only the distinct ones).

The product of its (nonzero) digits is 1613472, while the sum is 50.

The square root of 378774770 is about 19462.1368302661. The cubic root of 378774770 is about 723.5363384045.

The spelling of 378774770 in words is "three hundred seventy-eight million, seven hundred seventy-four thousand, seven hundred seventy".