378144432 has 30 divisors (see below), whose sum is σ = 1058279612. Its totient is φ = 126048096.

The previous prime is 378144409. The next prime is 378144433. The reversal of 378144432 is 234441873.

It is a super-2 number, since 2×378144432² = 285986422905205248, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (378144433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1312858 + ... + 1313145.

Almost surely, 2^378144432 is an apocalyptic number.

It is an amenable number.

378144432 is an abundant number, since it is smaller than the sum of its proper divisors (680135180).

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

378144432 is a wasteful number, since it uses less digits than its factorization.

378144432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2626017 (or 2626008 counting only the distinct ones).

The product of its digits is 64512, while the sum is 36.

The square root of 378144432 is about 19445.9361307189. The cubic root of 378144432 is about 723.1347579142.

The spelling of 378144432 in words is "three hundred seventy-eight million, one hundred forty-four thousand, four hundred thirty-two".