431340045 has 48 divisors (see below), whose sum is σ = 744702336. Its totient is φ = 212784000.

The previous prime is 431339977. The next prime is 431340047. The reversal of 431340045 is 540043134.

It is not a de Polignac number, because 431340045 - 2⁸ = 431339789 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 431339997 and 431340024.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (431340047) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 330895 + ... + 332195.

It is an arithmetic number, because the mean of its divisors is an integer number (15514632).

Almost surely, 2^431340045 is an apocalyptic number.

It is an amenable number.

431340045 is a deficient number, since it is larger than the sum of its proper divisors (313362291).

431340045 is a wasteful number, since it uses less digits than its factorization.

431340045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1394 (or 1363 counting only the distinct ones).

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

The square root of 431340045 is about 20768.7275729641. The cubic root of 431340045 is about 755.5674841166.

Adding to 431340045 its reverse (540043134), we get a palindrome (971383179).

The spelling of 431340045 in words is "four hundred thirty-one million, three hundred forty thousand, forty-five".