344912540 has 48 divisors (see below), whose sum is σ = 830936064. Its totient is φ = 117806400.

The previous prime is 344912537. The next prime is 344912543. The reversal of 344912540 is 45219443.

It is an interprime number because it is at equal distance from previous prime (344912537) and next prime (344912543).

It is a junction number, because it is equal to n+sod(n) for n = 344912497 and 344912506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (344912543) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33395 + ... + 42485.

It is an arithmetic number, because the mean of its divisors is an integer number (17311168).

Almost surely, 2^344912540 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 344912540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (415468032).

344912540 is an abundant number, since it is smaller than the sum of its proper divisors (486023524).

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

344912540 is a wasteful number, since it uses less digits than its factorization.

344912540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9378 (or 9376 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 32.

The square root of 344912540 is about 18571.8211277193. The cubic root of 344912540 is about 701.2986369037.

The spelling of 344912540 in words is "three hundred forty-four million, nine hundred twelve thousand, five hundred forty".