1342404040 has 16 divisors (see below), whose sum is σ = 3020409180. Its totient is φ = 536961600.

The previous prime is 1342404013. The next prime is 1342404061. The reversal of 1342404040 is 404042431.

It can be written as a sum of positive squares in 2 ways, for example, as 1324814404 + 17589636 = 36398^2 + 4194^2 .

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, 16780011 + ... + 16780090.

Almost surely, 2^1342404040 is an apocalyptic number.

1342404040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1342404040 is an abundant number, since it is smaller than the sum of its proper divisors (1678005140).

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

1342404040 is a wasteful number, since it uses less digits than its factorization.

1342404040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33560112 (or 33560108 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 22.

The square root of 1342404040 is about 36638.8324049771. The cubic root of 1342404040 is about 1103.1326788221.

Adding to 1342404040 its reverse (404042431), we get a palindrome (1746446471).

The spelling of 1342404040 in words is "one billion, three hundred forty-two million, four hundred four thousand, forty".