340440080 has 20 divisors (see below), whose sum is σ = 791523372. Its totient is φ = 136176000.

The previous prime is 340440017. The next prime is 340440083. The reversal of 340440080 is 80044043.

It can be written as a sum of positive squares in 2 ways, for example, as 79423744 + 261016336 = 8912^2 + 16156^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is not an unprimeable number, because it can be changed into a prime (340440083) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2127671 + ... + 2127830.

Almost surely, 2^340440080 is an apocalyptic number.

It is an amenable number.

340440080 is an abundant number, since it is smaller than the sum of its proper divisors (451083292).

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

340440080 is a wasteful number, since it uses less digits than its factorization.

340440080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4255514 (or 4255508 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 23.

The square root of 340440080 is about 18451.0184000775. The cubic root of 340440080 is about 698.2542074547.

The spelling of 340440080 in words is "three hundred forty million, four hundred forty thousand, eighty".