431400260 has 24 divisors (see below), whose sum is σ = 918703296. Its totient is φ = 170129120.

The previous prime is 431400227. The next prime is 431400269. The reversal of 431400260 is 62004134.

It is a happy number.

It is a super-2 number, since 2×431400260² = 372212368656135200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is not an unprimeable number, because it can be changed into a prime (431400269) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 150482 + ... + 153321.

It is an arithmetic number, because the mean of its divisors is an integer number (38279304).

Almost surely, 2^431400260 is an apocalyptic number.

It is an amenable number.

431400260 is an abundant number, since it is smaller than the sum of its proper divisors (487303036).

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

431400260 is a wasteful number, since it uses less digits than its factorization.

431400260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 303883 (or 303881 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 431400260 is about 20770.1771778673. The cubic root of 431400260 is about 755.6026415132.

Adding to 431400260 its reverse (62004134), we get a palindrome (493404394).

The spelling of 431400260 in words is "four hundred thirty-one million, four hundred thousand, two hundred sixty".