344864540 has 12 divisors (see below), whose sum is σ = 724215576. Its totient is φ = 137945808.

The previous prime is 344864503. The next prime is 344864543. The reversal of 344864540 is 45468443.

It is a junction number, because it is equal to n+sod(n) for n = 344864494 and 344864503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (344864543) 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, 8621594 + ... + 8621633.

It is an arithmetic number, because the mean of its divisors is an integer number (60351298).

Almost surely, 2^344864540 is an apocalyptic number.

It is an amenable number.

344864540 is an abundant number, since it is smaller than the sum of its proper divisors (379351036).

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

344864540 is a wasteful number, since it uses less digits than its factorization.

344864540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17243236 (or 17243234 counting only the distinct ones).

The product of its (nonzero) digits is 184320, while the sum is 38.

The square root of 344864540 is about 18570.5288023793. The cubic root of 344864540 is about 701.2661031526.

The spelling of 344864540 in words is "three hundred forty-four million, eight hundred sixty-four thousand, five hundred forty".