1431401340 has 48 divisors (see below), whose sum is σ = 4010936832. Its totient is φ = 381420096.

The previous prime is 1431401327. The next prime is 1431401341. The reversal of 1431401340 is 431041341.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1431401341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 78577 + ... + 95063.

It is an arithmetic number, because the mean of its divisors is an integer number (83561184).

Almost surely, 2^1431401340 is an apocalyptic number.

1431401340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1431401340 is an abundant number, since it is smaller than the sum of its proper divisors (2579535492).

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

1431401340 is a wasteful number, since it uses less digits than its factorization.

1431401340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17946 (or 17944 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 1431401340 is about 37833.8649889223. The cubic root of 1431401340 is about 1126.9910656661.

Adding to 1431401340 its reverse (431041341), we get a palindrome (1862442681).

The spelling of 1431401340 in words is "one billion, four hundred thirty-one million, four hundred one thousand, three hundred forty".