344401340 has 24 divisors (see below), whose sum is σ = 726885600. Its totient is φ = 137066688.

The previous prime is 344401339. The next prime is 344401381. The reversal of 344401340 is 43104443.

It is a super-2 number, since 2×344401340² = 237224565987591200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39287 + ... + 47246.

It is an arithmetic number, because the mean of its divisors is an integer number (30286900).

Almost surely, 2^344401340 is an apocalyptic number.

It is an amenable number.

344401340 is an abundant number, since it is smaller than the sum of its proper divisors (382484260).

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

344401340 is a wasteful number, since it uses less digits than its factorization.

344401340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86741 (or 86739 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 23.

The square root of 344401340 is about 18558.0532384192. The cubic root of 344401340 is about 700.9519972176.

Adding to 344401340 its reverse (43104443), we get a palindrome (387505783).

The spelling of 344401340 in words is "three hundred forty-four million, four hundred one thousand, three hundred forty".