340440523425 has 60 divisors (see below), whose sum is σ = 645279128560. Its totient is φ = 177345715680.

The previous prime is 340440523391. The next prime is 340440523427. The reversal of 340440523425 is 524325044043.

It is not a de Polignac number, because 340440523425 - 2⁹ = 340440522913 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 340440523425.

It is not an unprimeable number, because it can be changed into a prime (340440523427) by changing a digit.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 1867795 + ... + 2041944.

Almost surely, 2^340440523425 is an apocalyptic number.

It is an amenable number.

340440523425 is a deficient number, since it is larger than the sum of its proper divisors (304838605135).

340440523425 is a wasteful number, since it uses less digits than its factorization.

340440523425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3909804 (or 3909790 counting only the distinct ones).

The product of its (nonzero) digits is 230400, while the sum is 36.

Adding to 340440523425 its reverse (524325044043), we get a palindrome (864765567468).

The spelling of 340440523425 in words is "three hundred forty billion, four hundred forty million, five hundred twenty-three thousand, four hundred twenty-five".