145798884 has 144 divisors (see below), whose sum is σ = 463881600. Its totient is φ = 37509120.

The previous prime is 145798883. The next prime is 145798889. The reversal of 145798884 is 488897541.

It is a self number, because there is not a number n which added to its sum of digits gives 145798884.

It is not an unprimeable number, because it can be changed into a prime (145798883) 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 47 ways as a sum of consecutive naturals, for example, 412852 + ... + 413204.

It is an arithmetic number, because the mean of its divisors is an integer number (3221400).

Almost surely, 2^145798884 is an apocalyptic number.

145798884 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 145798884, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (231940800).

145798884 is an abundant number, since it is smaller than the sum of its proper divisors (318082716).

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

145798884 is a wasteful number, since it uses less digits than its factorization.

145798884 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 530 (or 525 counting only the distinct ones).

The product of its digits is 2580480, while the sum is 54.

The square root of 145798884 is about 12074.7208663389. The cubic root of 145798884 is about 526.3218499927.

The spelling of 145798884 in words is "one hundred forty-five million, seven hundred ninety-eight thousand, eight hundred eighty-four".