340423311402 has 24 divisors (see below), whose sum is σ = 761376869760. Its totient is φ = 109813971240.

The previous prime is 340423311401. The next prime is 340423311419. The reversal of 340423311402 is 204113324043.

340423311402 is a `hidden beast` number, since 340 + 4 + 2 + 3 + 311 + 4 + 0 + 2 = 666.

It is not an unprimeable number, because it can be changed into a prime (340423311401) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 305038252 + ... + 305039367.

It is an arithmetic number, because the mean of its divisors is an integer number (31724036240).

Almost surely, 2^340423311402 is an apocalyptic number.

340423311402 is an abundant number, since it is smaller than the sum of its proper divisors (420953558358).

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

340423311402 is a wasteful number, since it uses less digits than its factorization.

340423311402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 610077658 (or 610077655 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

Adding to 340423311402 its reverse (204113324043), we get a palindrome (544536635445).

The spelling of 340423311402 in words is "three hundred forty billion, four hundred twenty-three million, three hundred eleven thousand, four hundred two".