146439768 has 96 divisors (see below), whose sum is σ = 398756160. Its totient is φ = 44782080.

The previous prime is 146439757. The next prime is 146439773. The reversal of 146439768 is 867934641.

It is a nialpdrome in base 15.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 298003 + ... + 298493.

It is an arithmetic number, because the mean of its divisors is an integer number (4153710).

Almost surely, 2^146439768 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 146439768, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (199378080).

146439768 is an abundant number, since it is smaller than the sum of its proper divisors (252316392).

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

146439768 is a wasteful number, since it uses less digits than its factorization.

146439768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 577 (or 556 counting only the distinct ones).

The product of its digits is 870912, while the sum is 48.

The square root of 146439768 is about 12101.2300201261. The cubic root of 146439768 is about 527.0919021133.

The spelling of 146439768 in words is "one hundred forty-six million, four hundred thirty-nine thousand, seven hundred sixty-eight".