145433440 has 24 divisors (see below), whose sum is σ = 343586880. Its totient is φ = 58173312.

The previous prime is 145433411. The next prime is 145433441. The reversal of 145433440 is 44334541.

It is a junction number, because it is equal to n+sod(n) for n = 145433399 and 145433408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145433441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 454320 + ... + 454639.

It is an arithmetic number, because the mean of its divisors is an integer number (14316120).

Almost surely, 2^145433440 is an apocalyptic number.

145433440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

145433440 is an abundant number, since it is smaller than the sum of its proper divisors (198153440).

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

145433440 is an equidigital number, since it uses as much as digits as its factorization.

145433440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 908974 (or 908966 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 28.

The square root of 145433440 is about 12059.5787654462. The cubic root of 145433440 is about 525.8817412583.

Adding to 145433440 its reverse (44334541), we get a palindrome (189767981).

The spelling of 145433440 in words is "one hundred forty-five million, four hundred thirty-three thousand, four hundred forty".