340040122323420 has 48 divisors (see below), whose sum is σ = 954624512338560. Its totient is φ = 90438111683136.

The previous prime is 340040122323367. The next prime is 340040122323437. The reversal of 340040122323420 is 24323221040043.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7476673002 + ... + 7476718481.

It is an arithmetic number, because the mean of its divisors is an integer number (19888010673720).

Almost surely, 2^{340040122323420} is an apocalyptic number.

340040122323420 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

340040122323420 is an abundant number, since it is smaller than the sum of its proper divisors (614584390015140).

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

340040122323420 is a wasteful number, since it uses less digits than its factorization.

340040122323420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14953391874 (or 14953391872 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 30.

Adding to 340040122323420 its reverse (24323221040043), we get a palindrome (364363343363463).

The spelling of 340040122323420 in words is "three hundred forty trillion, forty billion, one hundred twenty-two million, three hundred twenty-three thousand, four hundred twenty".