1340041031 has 16 divisors (see below), whose sum is σ = 1622730816. Its totient is φ = 1080262656.

The previous prime is 1340040983. The next prime is 1340041057. The reversal of 1340041031 is 1301400431.

It is a cyclic number.

It is not a de Polignac number, because 1340041031 - 2⁶ = 1340040967 is a prime.

It is a super-2 number, since 2×1340041031² = 3591419929527085922, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1340041081) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 208295 + ... + 214631.

It is an arithmetic number, because the mean of its divisors is an integer number (101420676).

Almost surely, 2^1340041031 is an apocalyptic number.

1340041031 is a deficient number, since it is larger than the sum of its proper divisors (282689785).

1340041031 is a wasteful number, since it uses less digits than its factorization.

1340041031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8138.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 1340041031 is about 36606.5708719077. The cubic root of 1340041031 is about 1102.4850239720.

Adding to 1340041031 its reverse (1301400431), we get a palindrome (2641441462).

The spelling of 1340041031 in words is "one billion, three hundred forty million, forty-one thousand, thirty-one".