1342440031 has 6 divisors (see below), whose sum is σ = 1379704200. Its totient is φ = 1306156536.

The previous prime is 1342440023. The next prime is 1342440049. The reversal of 1342440031 is 1300442431.

It is not a de Polignac number, because 1342440031 - 2³ = 1342440023 is a prime.

It is a super-2 number, since 2×1342440031² = 3604290473662561922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1342439984 and 1342440011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1342447031) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 488931 + ... + 491668.

It is an arithmetic number, because the mean of its divisors is an integer number (229950700).

Almost surely, 2^1342440031 is an apocalyptic number.

1342440031 is a deficient number, since it is larger than the sum of its proper divisors (37264169).

1342440031 is an frugal number, since it uses more digits than its factorization.

1342440031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 980673 (or 980636 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 1342440031 is about 36639.3235608956. The cubic root of 1342440031 is about 1103.1425373774.

Adding to 1342440031 its reverse (1300442431), we get a palindrome (2642882462).

The spelling of 1342440031 in words is "one billion, three hundred forty-two million, four hundred forty thousand, thirty-one".