340440040 has 16 divisors (see below), whose sum is σ = 765990180. Its totient is φ = 136176000.

The previous prime is 340440017. The next prime is 340440083. The reversal of 340440040 is 40044043.

It can be written as a sum of positive squares in 2 ways, for example, as 334670436 + 5769604 = 18294^2 + 2402^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4255461 + ... + 4255540.

Almost surely, 2^340440040 is an apocalyptic number.

It is an amenable number.

340440040 is an abundant number, since it is smaller than the sum of its proper divisors (425550140).

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

340440040 is a wasteful number, since it uses less digits than its factorization.

340440040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8511012 (or 8511008 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 19.

The square root of 340440040 is about 18451.0173161265. The cubic root of 340440040 is about 698.2541801076.

Adding to 340440040 its reverse (40044043), we get a palindrome (380484083).

The spelling of 340440040 in words is "three hundred forty million, four hundred forty thousand, forty".