489333378 has 32 divisors (see below), whose sum is σ = 1011802176. Its totient is φ = 157667328.

The previous prime is 489333371. The next prime is 489333407. The reversal of 489333378 is 873333984.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (489333371) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15250 + ... + 34802.

It is an arithmetic number, because the mean of its divisors is an integer number (31618818).

Almost surely, 2^489333378 is an apocalyptic number.

489333378 is an abundant number, since it is smaller than the sum of its proper divisors (522468798).

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

489333378 is a wasteful number, since it uses less digits than its factorization.

489333378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19698.

The product of its digits is 1306368, while the sum is 48.

The square root of 489333378 is about 22120.8810403203. The cubic root of 489333378 is about 788.0158390058.

The spelling of 489333378 in words is "four hundred eighty-nine million, three hundred thirty-three thousand, three hundred seventy-eight".