431540260 has 48 divisors (see below), whose sum is σ = 967671936. Its totient is φ = 161263872.

The previous prime is 431540203. The next prime is 431540281. The reversal of 431540260 is 62045134.

It is a super-3 number, since 3×431540260³ (a number of 27 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8872 + ... + 30688.

It is an arithmetic number, because the mean of its divisors is an integer number (20159832).

Almost surely, 2^431540260 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 431540260, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (483835968).

431540260 is an abundant number, since it is smaller than the sum of its proper divisors (536131676).

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

431540260 is a wasteful number, since it uses less digits than its factorization.

431540260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21892 (or 21890 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 431540260 is about 20773.5471212790. The cubic root of 431540260 is about 755.6843698897.

Adding to 431540260 its reverse (62045134), we get a palindrome (493585394).

The spelling of 431540260 in words is "four hundred thirty-one million, five hundred forty thousand, two hundred sixty".