378302401 has 2 divisors, whose sum is σ = 378302402. Its totient is φ = 378302400.

The previous prime is 378302381. The next prime is 378302429. The reversal of 378302401 is 104203873.

It is an a-pointer prime, because the next prime (378302429) can be obtained adding 378302401 to its sum of digits (28).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 375429376 + 2873025 = 19376^2 + 1695^2 .

It is a cyclic number.

It is not a de Polignac number, because 378302401 - 2⁷ = 378302273 is a prime.

It is a super-2 number, since 2×378302401² = 286225413204729602, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 378302401.

It is not a weakly prime, because it can be changed into another prime (378302101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 189151200 + 189151201.

It is an arithmetic number, because the mean of its divisors is an integer number (189151201).

Almost surely, 2^378302401 is an apocalyptic number.

It is an amenable number.

378302401 is a deficient number, since it is larger than the sum of its proper divisors (1).

378302401 is an equidigital number, since it uses as much as digits as its factorization.

378302401 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4032, while the sum is 28.

The square root of 378302401 is about 19449.9974550127. The cubic root of 378302401 is about 723.2354398774.

The spelling of 378302401 in words is "three hundred seventy-eight million, three hundred two thousand, four hundred one".