378964401 has 4 divisors (see below), whose sum is σ = 505285872. Its totient is φ = 252642932.

The previous prime is 378964381. The next prime is 378964409. The reversal of 378964401 is 104469873.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 378964401 - 2⁹ = 378963889 is a prime.

It is a super-2 number, since 2×378964401² = 287228034450577602, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (378964409) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 63160731 + ... + 63160736.

It is an arithmetic number, because the mean of its divisors is an integer number (126321468).

Almost surely, 2^378964401 is an apocalyptic number.

It is an amenable number.

378964401 is a deficient number, since it is larger than the sum of its proper divisors (126321471).

378964401 is a wasteful number, since it uses less digits than its factorization.

378964401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126321470.

The product of its (nonzero) digits is 145152, while the sum is 42.

The square root of 378964401 is about 19467.0080135598. The cubic root of 378964401 is about 723.6570627679.

The spelling of 378964401 in words is "three hundred seventy-eight million, nine hundred sixty-four thousand, four hundred one".