378004281 has 16 divisors (see below), whose sum is σ = 508502400. Its totient is φ = 249765120.

The previous prime is 378004279. The next prime is 378004283. The reversal of 378004281 is 182400873.

It is an interprime number because it is at equal distance from previous prime (378004279) and next prime (378004283).

It is not a de Polignac number, because 378004281 - 2¹ = 378004279 is a prime.

It is a super-2 number, since 2×378004281² = 285774472908653922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (378004283) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 173841 + ... + 176001.

It is an arithmetic number, because the mean of its divisors is an integer number (31781400).

Almost surely, 2^378004281 is an apocalyptic number.

It is an amenable number.

378004281 is a deficient number, since it is larger than the sum of its proper divisors (130498119).

378004281 is a wasteful number, since it uses less digits than its factorization.

378004281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2656.

The product of its (nonzero) digits is 10752, while the sum is 33.

The square root of 378004281 is about 19442.3321903521. The cubic root of 378004281 is about 723.0454088240.

The spelling of 378004281 in words is "three hundred seventy-eight million, four thousand, two hundred eighty-one".