344408340 has 24 divisors (see below), whose sum is σ = 964343520. Its totient is φ = 91842208.

The previous prime is 344408329. The next prime is 344408377. The reversal of 344408340 is 43804443.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 344408298 and 344408307.

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, 2870010 + ... + 2870129.

It is an arithmetic number, because the mean of its divisors is an integer number (40180980).

Almost surely, 2^344408340 is an apocalyptic number.

344408340 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

344408340 is an abundant number, since it is smaller than the sum of its proper divisors (619935180).

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

344408340 is a wasteful number, since it uses less digits than its factorization.

344408340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5740151 (or 5740149 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 30.

The square root of 344408340 is about 18558.2418348291. The cubic root of 344408340 is about 700.9567461643.

The spelling of 344408340 in words is "three hundred forty-four million, four hundred eight thousand, three hundred forty".