340421240000 has 70 divisors (see below), whose sum is σ = 844134137484. Its totient is φ = 136168480000.

The previous prime is 340421239999. The next prime is 340421240051. The reversal of 340421240000 is 42124043.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 4215266 + ... + 4295265.

Almost surely, 2^340421240000 is an apocalyptic number.

It is an amenable number.

340421240000 is an abundant number, since it is smaller than the sum of its proper divisors (503712897484).

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

340421240000 is an frugal number, since it uses more digits than its factorization.

340421240000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8510563 (or 8510538 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

Adding to 340421240000 its reverse (42124043), we get a palindrome (340463364043).

The spelling of 340421240000 in words is "three hundred forty billion, four hundred twenty-one million, two hundred forty thousand".