340440012 has 36 divisors (see below), whose sum is σ = 938790216. Its totient is φ = 103163520.

The previous prime is 340439969. The next prime is 340440017. The reversal of 340440012 is 210044043.

340440012 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (340440017) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 429453 + ... + 430244.

It is an arithmetic number, because the mean of its divisors is an integer number (26077506).

Almost surely, 2^340440012 is an apocalyptic number.

It is an amenable number.

340440012 is an abundant number, since it is smaller than the sum of its proper divisors (598350204).

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

340440012 is a wasteful number, since it uses less digits than its factorization.

340440012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 859718 (or 859713 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 340440012 is about 18451.0165573607. The cubic root of 340440012 is about 698.2541609646.

Adding to 340440012 its reverse (210044043), we get a palindrome (550484055).

The spelling of 340440012 in words is "three hundred forty million, four hundred forty thousand, twelve".