340434431442 has 48 divisors (see below), whose sum is σ = 880034591520. Its totient is φ = 97266979656.

The previous prime is 340434431341. The next prime is 340434431461. The reversal of 340434431442 is 244134434043.

340434431442 is a `hidden beast` number, since 3 + 40 + 434 + 43 + 144 + 2 = 666.

It is a super-2 number, since 2×340434431442² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 340434431397 and 340434431406.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 64327368 + ... + 64332659.

It is an arithmetic number, because the mean of its divisors is an integer number (18334053990).

Almost surely, 2^340434431442 is an apocalyptic number.

340434431442 is an abundant number, since it is smaller than the sum of its proper divisors (539600160078).

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

340434431442 is a wasteful number, since it uses less digits than its factorization.

340434431442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128660052 (or 128660039 counting only the distinct ones).

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

Adding to 340434431442 its reverse (244134434043), we get a palindrome (584568865485).

The spelling of 340434431442 in words is "three hundred forty billion, four hundred thirty-four million, four hundred thirty-one thousand, four hundred forty-two".