378551485 has 8 divisors (see below), whose sum is σ = 489205080. Its totient is φ = 279545664.

The previous prime is 378551399. The next prime is 378551539. The reversal of 378551485 is 584155873.

It can be written as a sum of positive squares in 4 ways, for example, as 36264484 + 342287001 = 6022^2 + 18501^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 378551485 - 2⁷ = 378551357 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2911870 + ... + 2911999.

It is an arithmetic number, because the mean of its divisors is an integer number (61150635).

Almost surely, 2^378551485 is an apocalyptic number.

It is an amenable number.

378551485 is a deficient number, since it is larger than the sum of its proper divisors (110653595).

378551485 is a wasteful number, since it uses less digits than its factorization.

378551485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5823887.

The product of its digits is 672000, while the sum is 46.

The square root of 378551485 is about 19456.3995898522. The cubic root of 378551485 is about 723.3941373045.

It can be divided in two parts, 37855 and 1485, that added together give a triangular number (39340 = T₂₈₀).

The spelling of 378551485 in words is "three hundred seventy-eight million, five hundred fifty-one thousand, four hundred eighty-five".