145304328 has 128 divisors (see below), whose sum is σ = 412917120. Its totient is φ = 42301440.

The previous prime is 145304311. The next prime is 145304329. The reversal of 145304328 is 823403541.

It is a super-2 number, since 2×145304328² = 42226695471063168, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 145304295 and 145304304.

It is not an unprimeable number, because it can be changed into a prime (145304329) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 473151 + ... + 473457.

It is an arithmetic number, because the mean of its divisors is an integer number (3225915).

Almost surely, 2^145304328 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 145304328, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (206458560).

145304328 is an abundant number, since it is smaller than the sum of its proper divisors (267612792).

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

145304328 is a wasteful number, since it uses less digits than its factorization.

145304328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 407 (or 403 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 30.

The square root of 145304328 is about 12054.2244877055. The cubic root of 145304328 is about 525.7260738366.

Adding to 145304328 its reverse (823403541), we get a palindrome (968707869).

The spelling of 145304328 in words is "one hundred forty-five million, three hundred four thousand, three hundred twenty-eight".