145894432 has 48 divisors (see below), whose sum is σ = 301480704. Its totient is φ = 69408000.

The previous prime is 145894423. The next prime is 145894471. The reversal of 145894432 is 234498541.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 59307 + ... + 61717.

It is an arithmetic number, because the mean of its divisors is an integer number (6280848).

Almost surely, 2^145894432 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 145894432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (150740352).

145894432 is an abundant number, since it is smaller than the sum of its proper divisors (155586272).

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

145894432 is a wasteful number, since it uses less digits than its factorization.

145894432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2513 (or 2505 counting only the distinct ones).

The product of its digits is 138240, while the sum is 40.

The square root of 145894432 is about 12078.6767487171. The cubic root of 145894432 is about 526.4367983317.

The spelling of 145894432 in words is "one hundred forty-five million, eight hundred ninety-four thousand, four hundred thirty-two".