1340143401 has 8 divisors (see below), whose sum is σ = 1794273184. Its totient is φ = 889721280.

The previous prime is 1340143349. The next prime is 1340143433. The reversal of 1340143401 is 1043410431.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1340143401 - 2¹¹ = 1340141353 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1340143471) 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, 926071 + ... + 927516.

It is an arithmetic number, because the mean of its divisors is an integer number (224284148).

Almost surely, 2^1340143401 is an apocalyptic number.

It is an amenable number.

1340143401 is a deficient number, since it is larger than the sum of its proper divisors (454129783).

1340143401 is a wasteful number, since it uses less digits than its factorization.

1340143401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1853831.

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

The square root of 1340143401 is about 36607.9690914424. The cubic root of 1340143401 is about 1102.5130973706.

Adding to 1340143401 its reverse (1043410431), we get a palindrome (2383553832).

The spelling of 1340143401 in words is "one billion, three hundred forty million, one hundred forty-three thousand, four hundred one".