1342335440 has 20 divisors (see below), whose sum is σ = 3120930084. Its totient is φ = 536934144.

The previous prime is 1342335409. The next prime is 1342335457. The reversal of 1342335440 is 445332431.

It can be written as a sum of positive squares in 2 ways, for example, as 273307024 + 1069028416 = 16532^2 + 32696^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8389517 + ... + 8389676.

Almost surely, 2^1342335440 is an apocalyptic number.

1342335440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1342335440 is an abundant number, since it is smaller than the sum of its proper divisors (1778594644).

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

1342335440 is a wasteful number, since it uses less digits than its factorization.

1342335440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16779206 (or 16779200 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 29.

The square root of 1342335440 is about 36637.8962278131. The cubic root of 1342335440 is about 1103.1138876115.

Adding to 1342335440 its reverse (445332431), we get a palindrome (1787667871).

The spelling of 1342335440 in words is "one billion, three hundred forty-two million, three hundred thirty-five thousand, four hundred forty".