378035081 has 4 divisors (see below), whose sum is σ = 378077700. Its totient is φ = 377992464.

The previous prime is 378035071. The next prime is 378035123. The reversal of 378035081 is 180530873.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 222010000 + 156025081 = 14900^2 + 12491^2 .

It is a cyclic number.

It is not a de Polignac number, because 378035081 - 2²² = 373840777 is a prime.

It is a super-2 number, since 2×378035081² = 285821044933353122, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (378035011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2426 + ... + 27603.

It is an arithmetic number, because the mean of its divisors is an integer number (94519425).

Almost surely, 2^378035081 is an apocalyptic number.

It is an amenable number.

378035081 is a deficient number, since it is larger than the sum of its proper divisors (42619).

378035081 is a wasteful number, since it uses less digits than its factorization.

378035081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42618.

The product of its (nonzero) digits is 20160, while the sum is 35.

The square root of 378035081 is about 19443.1242602623. The cubic root of 378035081 is about 723.0650463386.

The spelling of 378035081 in words is "three hundred seventy-eight million, thirty-five thousand, eighty-one".