431201340 has 48 divisors (see below), whose sum is σ = 1341516960. Its totient is φ = 114986880.

The previous prime is 431201339. The next prime is 431201357. The reversal of 431201340 is 43102134.

431201340 is a `hidden beast` number, since 431 + 201 + 34 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

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, 398721 + ... + 399800.

It is an arithmetic number, because the mean of its divisors is an integer number (27948270).

Almost surely, 2^431201340 is an apocalyptic number.

It is an amenable number.

431201340 is an abundant number, since it is smaller than the sum of its proper divisors (910315620).

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

431201340 is a wasteful number, since it uses less digits than its factorization.

431201340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 798539 (or 798531 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 431201340 is about 20765.3880291219. The cubic root of 431201340 is about 755.4864867499.

Adding to 431201340 its reverse (43102134), we get a palindrome (474303474).

The spelling of 431201340 in words is "four hundred thirty-one million, two hundred one thousand, three hundred forty".