145040448 has 112 divisors (see below), whose sum is σ = 441252864. Its totient is φ = 41187840.

The previous prime is 145040437. The next prime is 145040479. The reversal of 145040448 is 844040541.

It is a tau number, because it is divible by the number of its divisors (112).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 417811 + ... + 418157.

Almost surely, 2^145040448 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 145040448, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (220626432).

145040448 is an abundant number, since it is smaller than the sum of its proper divisors (296212416).

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

145040448 is a wasteful number, since it uses less digits than its factorization.

145040448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 680 (or 670 counting only the distinct ones).

The product of its (nonzero) digits is 10240, while the sum is 30.

The square root of 145040448 is about 12043.2739734675. The cubic root of 145040448 is about 525.4076326209.

Adding to 145040448 its reverse (844040541), we get a palindrome (989080989).

The spelling of 145040448 in words is "one hundred forty-five million, forty thousand, four hundred forty-eight".