431481845 has 16 divisors (see below), whose sum is σ = 549367920. Its totient is φ = 324209664.

The previous prime is 431481833. The next prime is 431481847. The reversal of 431481845 is 548184134.

It can be written as a sum of positive squares in 8 ways, for example, as 421201 + 431060644 = 649^2 + 20762^2 .

It is a cyclic number.

It is not a de Polignac number, because 431481845 - 2⁴ = 431481829 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 431481799 and 431481808.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (431481847) 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, 38279 + ... + 48251.

It is an arithmetic number, because the mean of its divisors is an integer number (34335495).

Almost surely, 2^431481845 is an apocalyptic number.

It is an amenable number.

431481845 is a deficient number, since it is larger than the sum of its proper divisors (117886075).

431481845 is a wasteful number, since it uses less digits than its factorization.

431481845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10504.

The product of its digits is 61440, while the sum is 38.

The square root of 431481845 is about 20772.1410788585. The cubic root of 431481845 is about 755.6502708740.

The spelling of 431481845 in words is "four hundred thirty-one million, four hundred eighty-one thousand, eight hundred forty-five".