1340425134 has 24 divisors (see below), whose sum is σ = 2915565120. Its totient is φ = 445068288.

The previous prime is 1340425123. The next prime is 1340425139. The reversal of 1340425134 is 4315240431.

It is a happy number.

1340425134 is a `hidden beast` number, since 1 + 3 + 404 + 251 + 3 + 4 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 1340425098 and 1340425107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1340425139) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 140254 + ... + 149505.

It is an arithmetic number, because the mean of its divisors is an integer number (121481880).

Almost surely, 2^1340425134 is an apocalyptic number.

1340425134 is an abundant number, since it is smaller than the sum of its proper divisors (1575139986).

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

1340425134 is a wasteful number, since it uses less digits than its factorization.

1340425134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 290024 (or 290021 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

The square root of 1340425134 is about 36611.8168628655. The cubic root of 1340425134 is about 1102.5903509338.

Adding to 1340425134 its reverse (4315240431), we get a palindrome (5655665565).

The spelling of 1340425134 in words is "one billion, three hundred forty million, four hundred twenty-five thousand, one hundred thirty-four".