432891378 has 96 divisors (see below), whose sum is σ = 1023160320. Its totient is φ = 136993680.

The previous prime is 432891373. The next prime is 432891413. The reversal of 432891378 is 873198234.

432891378 is a `hidden beast` number, since 432 + 89 + 137 + 8 = 666.

It is not an unprimeable number, because it can be changed into a prime (432891373) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 888651 + ... + 889137.

It is an arithmetic number, because the mean of its divisors is an integer number (10657920).

Almost surely, 2^432891378 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 432891378, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (511580160).

432891378 is an abundant number, since it is smaller than the sum of its proper divisors (590268942).

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

432891378 is a wasteful number, since it uses less digits than its factorization.

432891378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 594 (or 582 counting only the distinct ones).

The product of its digits is 290304, while the sum is 45.

The square root of 432891378 is about 20806.0418628820. The cubic root of 432891378 is about 756.4722106566.

The spelling of 432891378 in words is "four hundred thirty-two million, eight hundred ninety-one thousand, three hundred seventy-eight".