43245321 has 16 divisors (see below), whose sum is σ = 65992704. Its totient is φ = 24675984.

The previous prime is 43245277. The next prime is 43245337. The reversal of 43245321 is 12354234.

It is not a de Polignac number, because 43245321 - 2⁹ = 43244809 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 43245291 and 43245300.

It is not an unprimeable number, because it can be changed into a prime (43245821) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22230 + ... + 24096.

It is an arithmetic number, because the mean of its divisors is an integer number (4124544).

Almost surely, 2^43245321 is an apocalyptic number.

It is an amenable number.

43245321 is a deficient number, since it is larger than the sum of its proper divisors (22747383).

43245321 is a wasteful number, since it uses less digits than its factorization.

43245321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2980.

The product of its digits is 2880, while the sum is 24.

The square root of 43245321 is about 6576.1174715785. The cubic root of 43245321 is about 351.0047888568.

Adding to 43245321 its reverse (12354234), we get a palindrome (55599555).

It can be divided in two parts, 432 and 45321, that added together give a triangular number (45753 = T₃₀₂).

The spelling of 43245321 in words is "forty-three million, two hundred forty-five thousand, three hundred twenty-one".