1342240240 has 40 divisors (see below), whose sum is σ = 3404411568. Its totient is φ = 488087040.

The previous prime is 1342240223. The next prime is 1342240243. The reversal of 1342240240 is 420422431.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a zygodrome in base 4.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1342240243) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 761757 + ... + 763516.

Almost surely, 2^1342240240 is an apocalyptic number.

1342240240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1342240240 is an abundant number, since it is smaller than the sum of its proper divisors (2062171328).

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

1342240240 is a wasteful number, since it uses less digits than its factorization.

1342240240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1525297 (or 1525291 counting only the distinct ones).

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

The square root of 1342240240 is about 36636.5970035428. The cubic root of 1342240240 is about 1103.0878089525.

Adding to 1342240240 its reverse (420422431), we get a palindrome (1762662671).

The spelling of 1342240240 in words is "one billion, three hundred forty-two million, two hundred forty thousand, two hundred forty".