344053778 has 4 divisors (see below), whose sum is σ = 516080670. Its totient is φ = 172026888.

The previous prime is 344053763. The next prime is 344053781. The reversal of 344053778 is 877350443.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 877350443 = 5779 ⋅151817.

It can be written as a sum of positive squares in only one way, i.e., 322310209 + 21743569 = 17953^2 + 4663^2 .

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 86013443 + ... + 86013446.

Almost surely, 2^344053778 is an apocalyptic number.

344053778 is a deficient number, since it is larger than the sum of its proper divisors (172026892).

344053778 is a wasteful number, since it uses less digits than its factorization.

344053778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172026891.

The product of its (nonzero) digits is 282240, while the sum is 41.

The square root of 344053778 is about 18548.6866920545. The cubic root of 344053778 is about 700.7161229153.

It can be divided in two parts, 34405 and 3778, that added together give a palindrome (38183).

The spelling of 344053778 in words is "three hundred forty-four million, fifty-three thousand, seven hundred seventy-eight".