340040443031420 has 24 divisors (see below), whose sum is σ = 716142812024304. Its totient is φ = 135624199753856.

The previous prime is 340040443031363. The next prime is 340040443031423. The reversal of 340040443031420 is 24130344040043.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (340040443031423) 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, 24498584057 + ... + 24498597936.

It is an arithmetic number, because the mean of its divisors is an integer number (29839283834346).

Almost surely, 2^{340040443031420} is an apocalyptic number.

It is an amenable number.

340040443031420 is an abundant number, since it is smaller than the sum of its proper divisors (376102368992884).

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

340040443031420 is a wasteful number, since it uses less digits than its factorization.

340040443031420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48997182349 (or 48997182347 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 32.

Adding to 340040443031420 its reverse (24130344040043), we get a palindrome (364170787071463).

The spelling of 340040443031420 in words is "three hundred forty trillion, forty billion, four hundred forty-three million, thirty-one thousand, four hundred twenty".