340982407042 has 4 divisors (see below), whose sum is σ = 511473610566. Its totient is φ = 170491203520.

The previous prime is 340982407037. The next prime is 340982407043. The reversal of 340982407042 is 240704289043.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 240704289043 = 67 ⋅3592601329.

It can be written as a sum of positive squares in only one way, i.e., 340401066721 + 581340321 = 583439^2 + 24111^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 340982407042.

It is not an unprimeable number, because it can be changed into a prime (340982407043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 85245601759 + ... + 85245601762.

Almost surely, 2^340982407042 is an apocalyptic number.

340982407042 is a deficient number, since it is larger than the sum of its proper divisors (170491203524).

340982407042 is a wasteful number, since it uses less digits than its factorization.

340982407042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170491203523.

The product of its (nonzero) digits is 387072, while the sum is 43.

The spelling of 340982407042 in words is "three hundred forty billion, nine hundred eighty-two million, four hundred seven thousand, forty-two".