340043421223440 has 240 divisors, whose sum is σ = 1274767431537600. Its totient is φ = 80517681054720.

The previous prime is 340043421223409. The next prime is 340043421223447. The reversal of 340043421223440 is 44322124340043.

340043421223440 is a `hidden beast` number, since 3 + 4 + 0 + 0 + 4 + 3 + 421 + 223 + 4 + 4 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (240).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 340043421223395 and 340043421223404.

It is not an unprimeable number, because it can be changed into a prime (340043421223447) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 498901015 + ... + 499582134.

It is an arithmetic number, because the mean of its divisors is an integer number (5311530964740).

Almost surely, 2^{340043421223440} is an apocalyptic number.

340043421223440 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

340043421223440 is an abundant number, since it is smaller than the sum of its proper divisors (934724010314160).

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

340043421223440 is a wasteful number, since it uses less digits than its factorization.

340043421223440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 998483222 (or 998483213 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 36.

Adding to 340043421223440 its reverse (44322124340043), we get a palindrome (384365545563483).

The spelling of 340043421223440 in words is "three hundred forty trillion, forty-three billion, four hundred twenty-one million, two hundred twenty-three thousand, four hundred forty".