344408378 has 8 divisors (see below), whose sum is σ = 517075968. Its totient is φ = 172049724.

The previous prime is 344408377. The next prime is 344408381. The reversal of 344408378 is 873804443.

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

It is a super-3 number, since 3×344408378³ (a number of 27 digits) contains 333 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (344408377) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 74426 + ... + 78917.

It is an arithmetic number, because the mean of its divisors is an integer number (64634496).

Almost surely, 2^344408378 is an apocalyptic number.

344408378 is a deficient number, since it is larger than the sum of its proper divisors (172667590).

344408378 is a wasteful number, since it uses less digits than its factorization.

344408378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154468.

The product of its (nonzero) digits is 258048, while the sum is 41.

The square root of 344408378 is about 18558.2428586329. The cubic root of 344408378 is about 700.9567719441.

The spelling of 344408378 in words is "three hundred forty-four million, four hundred eight thousand, three hundred seventy-eight".