145442432 has 64 divisors (see below), whose sum is σ = 305510400. Its totient is φ = 68834304.

The previous prime is 145442431. The next prime is 145442443. The reversal of 145442432 is 234244541.

It is a tau number, because it is divible by the number of its divisors (64).

It is a junction number, because it is equal to n+sod(n) for n = 145442395 and 145442404.

It is not an unprimeable number, because it can be changed into a prime (145442431) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 373694 + ... + 374082.

It is an arithmetic number, because the mean of its divisors is an integer number (4773600).

Almost surely, 2^145442432 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 145442432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (152755200).

145442432 is an abundant number, since it is smaller than the sum of its proper divisors (160067968).

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

145442432 is a wasteful number, since it uses less digits than its factorization.

145442432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 553 (or 541 counting only the distinct ones).

The product of its digits is 15360, while the sum is 29.

The square root of 145442432 is about 12059.9515753588. The cubic root of 145442432 is about 525.8925792773.

Adding to 145442432 its reverse (234244541), we get a palindrome (379686973).

The spelling of 145442432 in words is "one hundred forty-five million, four hundred forty-two thousand, four hundred thirty-two".