344400053 has 8 divisors (see below), whose sum is σ = 347834520. Its totient is φ = 340979200.

The previous prime is 344400037. The next prime is 344400073. The reversal of 344400053 is 350004443.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 138133009 + 206267044 = 11753^2 + 14362^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 344400053 - 2⁴ = 344400037 is a prime.

It is a super-2 number, since 2×344400053² = 237222793012805618, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (344400073) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 51803 + ... + 58071.

It is an arithmetic number, because the mean of its divisors is an integer number (43479315).

Almost surely, 2^344400053 is an apocalyptic number.

It is an amenable number.

344400053 is a deficient number, since it is larger than the sum of its proper divisors (3434467).

344400053 is a wasteful number, since it uses less digits than its factorization.

344400053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6807.

The product of its (nonzero) digits is 2880, while the sum is 23.

The square root of 344400053 is about 18558.0185634135. The cubic root of 344400053 is about 700.9511240829.

Adding to 344400053 its reverse (350004443), we get a palindrome (694404496).

The spelling of 344400053 in words is "three hundred forty-four million, four hundred thousand, fifty-three".