378965440 has 56 divisors (see below), whose sum is σ = 1031333472. Its totient is φ = 129930240.

The previous prime is 378965401. The next prime is 378965441. The reversal of 378965440 is 44569873.

It is a tau number, because it is divible by the number of its divisors (56).

It is a super-2 number, since 2×378965440² = 287229609428787200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (378965441) 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 7 ways as a sum of consecutive naturals, for example, 82351 + ... + 86830.

Almost surely, 2^378965440 is an apocalyptic number.

It is an amenable number.

378965440 is an abundant number, since it is smaller than the sum of its proper divisors (652368032).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

378965440 is a wasteful number, since it uses less digits than its factorization.

378965440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 169205 (or 169195 counting only the distinct ones).

The product of its (nonzero) digits is 725760, while the sum is 46.

The square root of 378965440 is about 19467.0346997174. The cubic root of 378965440 is about 723.6577241132.

The spelling of 378965440 in words is "three hundred seventy-eight million, nine hundred sixty-five thousand, four hundred forty".