340443396 has 36 divisors (see below), whose sum is σ = 864444672. Its totient is φ = 112969584.

The previous prime is 340443391. The next prime is 340443407. The reversal of 340443396 is 693344043.

It is a happy number.

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 (36).

It is a self number, because there is not a number n which added to its sum of digits gives 340443396.

It is not an unprimeable number, because it can be changed into a prime (340443391) 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, 13176 + ... + 29231.

It is an arithmetic number, because the mean of its divisors is an integer number (24012352).

Almost surely, 2^340443396 is an apocalyptic number.

340443396 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

340443396 is an abundant number, since it is smaller than the sum of its proper divisors (524001276).

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

340443396 is a wasteful number, since it uses less digits than its factorization.

340443396 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42640 (or 42635 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 36.

The square root of 340443396 is about 18451.1082593973. The cubic root of 340443396 is about 698.2564745237.

The spelling of 340443396 in words is "three hundred forty million, four hundred forty-three thousand, three hundred ninety-six".