340521143404 has 24 divisors (see below), whose sum is σ = 645296991248. Its totient is φ = 156295293120.

The previous prime is 340521143393. The next prime is 340521143477. The reversal of 340521143404 is 404341125043.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18080322 + ... + 18099145.

Almost surely, 2^340521143404 is an apocalyptic number.

It is an amenable number.

340521143404 is a deficient number, since it is larger than the sum of its proper divisors (304775847844).

340521143404 is a wasteful number, since it uses less digits than its factorization.

340521143404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36179665 (or 36179663 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 31.

Adding to 340521143404 its reverse (404341125043), we get a palindrome (744862268447).

The spelling of 340521143404 in words is "three hundred forty billion, five hundred twenty-one million, one hundred forty-three thousand, four hundred four".