1342744240 has 40 divisors (see below), whose sum is σ = 3124242000. Its totient is φ = 536691456.

The previous prime is 1342744237. The next prime is 1342744259. The reversal of 1342744240 is 424472431.

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

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 114322 + ... + 125518.

It is an arithmetic number, because the mean of its divisors is an integer number (78106050).

Almost surely, 2^1342744240 is an apocalyptic number.

1342744240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1342744240 is an abundant number, since it is smaller than the sum of its proper divisors (1781497760).

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

1342744240 is a wasteful number, since it uses less digits than its factorization.

1342744240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12709 (or 12703 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 31.

The square root of 1342744240 is about 36643.4747260682. The cubic root of 1342744240 is about 1103.2258584283.

Subtracting from 1342744240 its reverse (424472431), we obtain a square (918271809 = 30303²).

The spelling of 1342744240 in words is "one billion, three hundred forty-two million, seven hundred forty-four thousand, two hundred forty".